(biology) Loss during evolution of the final stages of the ancestral ontogenetic pattern.
(linguistics) A shortened or contracted form of a word or phrase, used to represent the whole, utilizing omission of letters, and sometimes substitution of letters, or duplication of initial letters to signify plurality, including signs such as +, =, @.
(mathematics) Reduction to lower terms, as a fraction.
(music) A notation used in music score to denote a direction, as pp or mf.
(music) One or more dashes through the stem of a note, dividing it respectively into quavers, semiquavers, demisemiquavers, or hemidemisemiquavers.
Any convenient short form used as a substitution for an understood or inferred whole.
The process of abbreviating.
The result of shortening or reducing; abridgment.
abbreviations
abbreviations
noun
plural of abbreviation
abbreviator
abbreviator
noun
(Roman Catholicism, historical) One of a college of seventy-two officers of the papal court whose duty was to make a short minute of a decision on a petition, or reply of the pope to a letter, and afterwards expand the minute into official form.
A person who abbreviates or shortens.
abbreviators
abbreviators
noun
plural of abbreviator
abbreviatory
abbreviatory
adj
Serving or tending to abbreviate; shortening; abridging.
abbroachment
abdominoanterior
abdominohysterectomy
abdominohysterectomy
noun
(surgery) Removal of the uterus via an incision made in the abdominal wall rather than via the vagina.
abdominohysterotomy
abdominohysterotomy
noun
(surgery) An incision of the uterus, done through a surgical hole in the abdomen.
abdominoposterior
abductores
abductores
Noun
of. Sometimes used instead of abductor when referring to the anatomical muscles.
aberration
aberration
noun
(astronomy) A small periodical change of the apparent positions of the stars and other heavenly bodies, due to the combined effect of the motion of light and the motion of the observer.
(astronomy, by extension) The tendency of light rays to preferentially strike the leading face of a moving object (the effect underlying the above phenomenon).
(electronics) A defect in an image produced by an optical or electrostatic lens system.
(medicine) A deviation of a tissue, organ or mental functions from what is considered to be within the normal range.
(optics) The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; a defect in a focusing mechanism that prevents the intended focal point.
(zoology, botany) A typical development or structure; deviation from the normal type; an aberrant organ.
A mental disorder, especially one of a minor or temporary character.
A partial alienation of reason.
The act of wandering; deviation from truth, moral rectitude; abnormal; divergence from the straight, correct, proper, normal, or from the natural state.
aberrational
aberrational
adj
Characterized by aberration.
aberrations
aberrations
noun
plural of aberration
aberrator
aberrator
noun
(optics) A device that simulates aberration in an image.
aberrometer
aberrometer
noun
A device that measures refractive aberrations of the eye
aberuncator
aberuncator
noun
A pruning device mounted on a pole, so as to reach high branches; a weeding machine.
abettor
abettor
noun
A supporter or advocate.
One that abets an offender; one that incites; instigates; encourages.
abettors
abettors
noun
plural of abettor
abhorrent
abhorrent
adj
(archaic) Inconsistent with, or far removed from, something; strongly opposed.
Abhorring; detesting; having or showing abhorrence; loathing.
Contrary to something; discordant.
Detestable or repugnant.
abhorrently
abhorrently
adv
In a manner, or to a degree, that is abhorrent; with abhorrence.
abnegator
abnegator
noun
(rare) One who abnegates, denies, or rejects.
abnegators
abnegators
noun
plural of abnegator
abnormalities
abnormalities
noun
plural of abnormality
abnormities
abnormities
noun
plural of abnormity
aborsement
aborsement
noun
(obsolete) Abortment; abortion
aborted
aborted
adj
(biology) Rendered abortive or sterile; undeveloped.
Brought forth prematurely.
Checked in normal development at an early stage.
verb
simple past tense and past participle of abort
aborter
aborter
noun
(derogatory) One who has an abortion.
(rare) One who performs an abortion.
One who or that which aborts.
aborters
aborters
noun
plural of aborter
aborticide
aborticide
noun
An agent responsible for an abortion (the destruction of a fetus); abortifacient.
The act of destroying a fetus in the womb; feticide.
abortient
abortient
adj
(archaic, medicine) Reproductively sterile or miscarrying.
noun
(archaic, medicine) Abortifacient; an agent producing abortion.
abortifacient
abortifacient
adj
(pharmacology) Producing miscarriage.
noun
(pharmacology) A drug or an agent that induces an abortion.
abortive
abortive
adj
(biology) Imperfectly formed or developed; rudimentary; sterile.
(medicine) Cutting short; acting to halt or slow the progress (of a disease).
(obsolete) Produced by abortion; born prematurely and therefore unnatural.
(molecular biology, transitive) To block a process or function.
(transitive) To put an end to; to do away with.
(transitive, law) To annul by an authoritative act; to abolish by the authority of the maker or her or his successor; to repeal; — applied to the repeal of laws, decrees, ordinances, the abolition of customs, etc.
abrogated
abrogated
verb
simple past tense and past participle of abrogate
abrogates
abrogates
verb
Third-person singular simple present indicative form of abrogate
abrogative
abrogative
adj
Tending or designed to abrogate.
abrotine
abrotine
noun
A colorless crystalline alkaloid obtained from abrotanum, C₂₁H₂₂N₂O.
abruptiones
absarokite
absarokite
noun
(mineralogy) A basaltic-trachyandesite rock containing phenocrysts of olivine and augite
abscessroot
absoluter
absoluter
adj
(rare) comparative form of absolute: more absolute
absorbefacient
absorbefacient
adj
(medicine) Inducing or increasing absorption (of a drug).
noun
(medicine) Any such medicine that induces absorption.
absorbent
absorbent
adj
Having the ability or tendency to absorb; able to soak up liquid easily; absorptive.
noun
(chemistry) A liquid used in the process of separating gases or volatile liquids, in oil refining.
(medicine) Any substance which absorbs and neutralizes acid fluid in the stomach and bowels, as magnesia, chalk, etc.; also a substance, e.g., iodine, which acts on the absorbent vessels so as to reduce enlarged and indurated parts.
(physiology, pluralized, now rare) The vessels by which the processes of absorption are carried on, as the lymphatics in animals, the extremities of the roots in plants.
Anything which absorbs.
absorbents
absorbents
noun
plural of absorbent
absorptance
absorptance
noun
(optics, physics) Absorbed radiation and incident radiation in a ratio format; a measurement that shows how well a surface absorbs radiation.
absorptances
absorptances
noun
plural of absorptance
absorptiometer
absorptiometer
noun
A instrument that computes the absorption rate by measuring the pressure of the gas; a colorimeter for liquids.
An instrument used to measure the amount of radiation or light absorbed.
absorptiometric
absorptiometric
adj
Of or pertaining to the measurement of absorption.
absorptive
absorptive
adj
Having power, capacity, or tendency to absorb or imbibe; absorbent.
noun
Any substance that absorbs.
absorptively
absorptively
adv
In an absorptive way.
absorptiveness
absorptiveness
noun
The quality of being absorptive; absorptive power.
abstersion
abstersion
noun
(archaic) Act of wiping clean; a cleansing; a purging.
abstertion
acerbityacerose
acetabuliferous
acetabuliferous
adj
Furnished with fleshy cups for adhering to bodies, as cuttlefish, etc.
acetabuliform
acetabuliform
adj
(botany) Shaped like a saucer or shallow cup.
acetbromamide
acetobacter
acetobacter
noun
Any of the genus Acetobacter of acetic acid bacteria characterized by the ability to convert ethanol to acetic acid in the presence of oxygen, and used in the commercial production of vinegar.
acetobromanilide
acetylcarbazole
acetylmethylcarbinol
acetylmethylcarbinol
noun
(organic chemistry) acetoin
achromatizable
achromobacter
achromobacterieae
acrobates
adderbolt
adderbolt
noun
(now UK dialectal) A dragonfly.
adsorbate
adsorbate
noun
a substance that has been adsorbed
adsorbates
adsorbates
noun
plural of adsorbate
adsorbent
adsorbent
adj
Tending to adsorb.
noun
The solid or liquid in the process of adsorption on which the adsorbate accumulates.
adsorbents
adsorbents
noun
plural of adsorbent
adverbiation
aerobacter
aerobacteriological
aerobacteriologically
aerobacteriologist
aerobacteriology
aerobacters
aeroballistic
aeroballistic
adj
Relating to aeroballistics.
aeroballistics
aeroballistics
noun
The part of ballistics that deals with the interaction of high-speed projectiles with the atmosphere
aerobate
aerobate
verb
(aviation) To perform aerobatics.
aerobated
aerobated
verb
simple past tense and past participle of aerobate
aerobatic
aerobatic
adj
Having to do with acrobatic maneuvers, such as spins, twirls, and flips, performed by an airplane.
aerobatics
aerobatics
noun
Spectacular stunts, performed in an airplane or glider. Examples include various types of rolls and loops.
aerobating
aerobating
verb
present participle of aerobate
aerobiologist
aerobiologist
noun
A biologist specializing in aerobiology.
aerobiont
aerobiont
noun
(biology) Any organism that needs air (oxygen) to survive
aerobiotic
aerobiotic
adj
Of or pertaining to aerobiosis
aerobiotically
aerobiotically
adv
By means of aerobiosis.
aeroboat
aeroboat
noun
(archaic) A form of hydroaeroplane; a flying boat.
aerobranchiate
afforestable
afforestable
adj
Suitable for being afforested.
afterblow
afterbodies
afterbodies
noun
plural of afterbody
afterbody
afterbody
noun
(astronautics) A section or piece of a launch vehicle, rocket, or spacecraft that enters the atmosphere unprotected behind the nose cone or other body that is protected for entry.
(astronomy) A companion body that trails a satellite or spacecraft.
(nautical) The part of a vessel abaft midships.
The afterpart of a vehicle.
agrobacterium
agrobacterium
noun
A soil bacterium, of the genus Agrobacterium, which can fix nitrogen, and causes the formation of crown galls in plants.
albatrosses
albatrosses
noun
plural of albatross
albedometer
albedometer
noun
An instrument used to measure the albedo of a surface
alberto
alberton
alberton
Proper noun
A town in Montana
A township in Ontario
A town in Prince Edward Island, Canada
A town in Gauteng Province, South Africa
A town in Victoria, Australia
albertson
albitophyre
alboranite
albuminometer
albuminometry
alembroth
alembroth
noun
(archaic) The "salt of wisdom" of the alchemists, a double salt composed of the chlorides of ammonium and mercury, formerly used as a stimulant.
algebraization
algebraization
noun
(mathematics) conversion to algebraic form
algebrization
algebrization
noun
(mathematics) Alternative form of algebraization
alphabetiform
alphabetiform
adj
Having the form of a developed alphabet or its letters, as opposed to crude pictographic symbols.
ambatoarinite
ambicolorate
ambidexterous
ambidexterous
adj
Misspelling of ambidextrous.
ambidextrous
ambidextrous
adj
(archaic) Practising or siding with both parties.
(humorous) Of a person, bisexual.
Equally usable by left-handed and right-handed people (as a tool or instrument).
Exceptionally skillful; adept in more than one medium, genre, style, etc.
Having equal ability in both hands; in particular, able to write equally well with both hands.
ambidextrously
ambidextrously
adv
In an ambidextrous manner.
ambidextrousness
ambidextrousness
noun
The state or quality of being ambidextrous.
ambisextrous
ambisextrous
adj
(humorous, sometimes offensive, of a person) Bisexual.
Epicene, androgynous.
Having both male and female, or masculine and feminine elements.
ambisporangiate
amboceptor
amboceptor
noun
(obsolete) Synonym of hemolysin
ambodexter
ambodexter
noun
Obsolete spelling of ambidexter.
ambrettolide
ambrettolide
noun
(organic compond) The macrolide lactone 1-oxacycloheptadec-8-en-2-one
ambrosiate
ambrosiate
noun
A crystalline substance, C₂₃H₂₅O₅Br, that is one of the common irritants that can be refined from ragweed (Ambrosia arthemisiifolia).
ambrosterol
ambrotype
ambrotype
noun
(photography, historical) An early type of photograph in which a glass negative appears positive when displayed on a black background.
ambulatories
ambulatories
noun
plural of ambulatory
amebobacter
amoebobacter
amoebobacterieae
amortisable
amortisable
adj
Alternative form of amortizable
amortizable
amortizable
adj
Capable of being amortized.
anaerobation
anaerobiont
anaerobiotic
anaerobiotic
adj
(anatomy) Resembling or relating to anaerobes.
anaerobiotically
anaerobiotically
adv
In an anaerobiotic manner.
angiotribe
angiotribe
noun
An instrument for controlling hemorrhages
anisobranchiate
anteorbital
anteorbital
adj
(anatomy) Situated in front of the eyes.
(astronautics) Referring to the period before orbit is achieved.
anteprohibition
anteprohibition
adj
Before Prohibition (period of alcohol ban).
antiamboceptor
antiamboceptor
noun
Any substance that counters an amboceptor
antibacteriolytic
antibacteriolytic
adj
Counteracting bacteriolysis.
antiballooner
antiballooner
noun
(textiles) A device that prevents the outward bulging of the material being worked on by a spinning frame.
antiblennorrhagic
antiblennorrhagic
adj
(pharmacology) Countering or preventing blennorrhoea.
noun
(pharmacology) Any medicine that counters or prevents blennorrhoea.
antibourgeois
antibourgeois
adj
(sociology) Opposed to the bourgeoisie.
antiportable
antirobbery
antirobbery
adj
Opposing or preventing robbery.
antisubversion
antisubversion
adj
Opposing or countering political subversion.
antituberculosis
antituberculosis
adj
(pharmacology) Acting to combat or counteract tuberculosis