(zoology) A group of acalephs that includes most of the larger jellyfish
acropolis
acropolis
noun
A promontory (usually fortified with a citadel) forming the hub of many Grecian cities, and around which many were built for defensive purposes before and during the classical period; compare Acropolis.
acrospire
acrospire
noun
(botany) The sprout at the end of a seed when it begins to germinate.
verb
To put forth the first sprout.
acrospore
acrospore
noun
A spore borne at the extremity of the cells of fructification in fungi.
actorship
actorship
noun
The state or quality associated with being an actor.
adderspit
adscripts
adscripts
noun
plural of adscript
aepyceros
aepyornis
aeropause
aeropause
noun
The region of the atmosphere above which it is not possible for aircraft to fly
aeropulse
aeropulse
noun
pulsejet
aeroscope
aeroscope
noun
A device used to collect dust particles, spores etc from the air for subsequent analysis.
A type of compressed air camera for making films, constructed by Polish inventor Kazimierz Prószyński in 1909
aeroscopy
aeroscopy
noun
(obsolete, meteorology) The branch of meteorology that involves the scientific examination of the various properties and composition of the atmosphere, and their variation
(rare) divination by observation of the sky
(zoology) aeroscepsy
aerospace
aerospace
adj
Of, or relating to the Earth's atmosphere and nearby space.
Of, or relating to the science, technology and industry associated with aircraft, missiles, satellites and spacecraft.
noun
The atmosphere of the Earth and the region of space around it.
The industry concerned with aircraft, missiles, satellites and spacecraft.
afterpast
aftership
agapornis
agitprops
agitprops
noun
plural of agitprop
agraphias
agraphias
noun
plural of agraphia
agrypnias
ailuropus
airplanes
airplanes
noun
plural of airplane
verb
Third-person singular simple present indicative form of airplane
airproofs
airproofs
verb
Third-person singular simple present indicative form of airproof
airscapes
airscapes
noun
plural of airscape
airspaces
airspaces
noun
plural of airspace
airspeeds
airspeeds
noun
plural of airspeed
airstrips
airstrips
noun
plural of airstrip
alpestral
amorphism
amorphism
noun
An amorphous quality.
amorphous
amorphous
adj
(by extension) Being without definite character or nature.
(by extension) Lacking organization or unity.
(physics) In the non-crystalline solid state of a typically crystalline solid.
(set theory, of a set) Infinite and not the disjoint union of two infinite subsets.
Lacking a definite form or clear shape.
amperages
amperages
noun
plural of amperage
ampersand
ampersand
noun
The symbol "&".
verb
(transitive, rare) To add an ampersand to.
amphorous
anaphoras
anaphoras
noun
plural of anaphora
anthropos
anthropos
Proper noun
The primordial man/humanity.
antiprism
antiprism
noun
A polyhedron composed of two parallel copies of some particular polygon, connected by an alternating band of triangles.
apartness
apartness
noun
(countable) The result or product of being apart.
(uncountable) The state or quality of being apart.
apatornis
aperients
aperients
noun
plural of aperient
aperitifs
aperitifs
noun
plural of aperitif
apertness
apertness
noun
(archaic) openness; frankness
apertures
apertures
noun
plural of aperture
apheresis
apheresis
noun
(linguistics, prosody) Elision, suppression, or complete loss of a letter or sound (syllable) from the beginning of a word, such as the development of special from especial; procope.
(medicine, general, obsolete) Extirpation or extraction of a superfluity (especially a pathological one) from the body, especially blood.
(medicine, specific, still current) The removal of blood from a patient, and the removal of certain components (such as platelets) from that blood, followed by the transfusion of the filtered blood back to the donor (patient).
aphorised
aphorised
verb
simple past tense and past participle of aphorise
aphoriser
aphoriser
noun
An aphorist.
aphorises
aphorises
verb
Third-person singular simple present indicative form of aphorise
aphorisms
aphorisms
noun
plural of aphorism
verb
Third-person singular simple present indicative form of aphorism
aphorists
aphorists
noun
plural of aphorist
aphorizes
aphorizes
verb
Third-person singular simple present indicative form of aphorize
apiarians
apiarians
noun
plural of apiarian
apiarists
apiarists
noun
plural of apiarist
apikorsim
apikorsim
noun
plural of apikoros
apivorous
apivorous
adj
That feeds on bees
aplustria
aporrhais
aportlast
aportoise
aposaturn
aposporic
aposporic
adj
Alternative form of aposporous
apparatus
apparatus
noun
(collective) An assortment of tools and instruments.
(firefighting) A vehicle used for emergency response.
(gymnastics) Any of the equipment on which the gymnasts perform their movements.
(video games) A complex, highly modified weapon (typically not a firearm); a weaponized “Rube Goldberg machine.”
A bureaucratic organization, especially one influenced by political patronage.
A complex machine or instrument.
The entirety of means whereby a specific production is made existent or task accomplished.
appealers
appealers
noun
plural of appealer
appearers
appearers
noun
plural of appearer
appeasers
appeasers
noun
plural of appeaser
appellors
appenders
appenders
noun
plural of appender
appertise
appetiser
appetiser
noun
Alternative spelling of appetizer.
appraisal
appraisal
noun
A judgment or assessment of the value of something, especially a formal one.
The act or process of developing an opinion of value.
appraised
appraised
verb
simple past tense and past participle of appraise
appraiser
appraiser
noun
One who performs appraisals.
appraises
appraises
verb
Third-person singular simple present indicative form of appraise
appressed
appressed
adj
(biology, mycology) Closely flattened down.
verb
simple past tense and past participle of appress
appressor
apprisers
apprisers
noun
plural of appriser
apprising
apprising
noun
(Scotland, law, historical) The appraisal of the value of goods, land, etc., often in order to pay the debts of a deceased person.
verb
present participle of apprise
apprizers
apprizers
noun
plural of apprizer
approvals
approvals
noun
plural of approval
approvers
approvers
noun
plural of approver
apriorism
apriorism
noun
(philosophy) The idea that some knowledge of the physical world can be derived logically from general principles.
apriorist
apriorist
noun
(philosophy) A believer in apriorism.
aproctous
aproctous
adj
(zoology) Without an anal orifice.
apronless
apronless
adj
Without an apron.
aprosexia
aprosexia
noun
(psychology) Inability to concentrate.
aprosopia
aprosopia
noun
(teratology) having an underdeveloped face, or having no face
apsarases
apteryges
apteryxes
apteryxes
noun
plural of apteryx
arapahoes
arapaimas
arapaimas
noun
plural of arapaima
arapeshes
areopagus
areopagus
Noun
The supreme judicial and legislative council of ancient Athens
arhatship
arhatship
Noun
The state of being an arhat.
arpeggios
arpeggios
verb
Third-person singular simple present indicative form of arpeggio
aruspices
aruspices
noun
plural of aruspex
plural of aruspice
ascocarps
ascocarps
noun
plural of ascocarp
ascophore
ascospore
ascospore
noun
(biology) A sexually produced spore from the ascus of an Ascomycetes fungus
asparagic
asparagin
asparagus
asparagus
noun
(color) A green colour, like that of an asparagus.
Any of various perennial plants of the genus Asparagus having leaflike stems, scalelike leaves, and small flowers.
The young shoots of Asparagus officinalis eaten as a vegetable.
asparagyl
asparamic
aspartame
aspartame
noun
(organic chemistry) An artificial sweetener, the methyl ester of a dipeptide formed from aspartic acid and phenylalanine, used in many processed foods and beverages.
aspartate
aspartate
noun
(organic chemistry) Any salt or ester of aspartic acid.
asperated
asperated
verb
simple past tense and past participle of asperate
asperates
asperates
verb
Third-person singular simple present indicative form of asperate
aspergill
aspergill
noun
Alternative form of aspergillum
aspermont
aspermous
aspermous
adj
(botany) Lacking seeds.
asperness
aspersers
aspersers
noun
plural of asperser
aspersing
aspersing
verb
present participle of asperse
aspersion
aspersion
noun
(in the plural) slander, calumny
(obsolete) A sprinkling, especially of holy water.
An attack on somebody's reputation or good name, often in the phrase to cast aspersions upon….
aspersive
aspersive
adj
Tending to asperse; defamatory; slanderous.
aspersoir
aspersoir
noun
aspergillum
aspersors
aspersors
noun
plural of aspersor
aspersory
aspersory
adj
aspersive
noun
Synonym of aspersorium
asphalter
asphalter
noun
One who pours or works with asphalt.
aspirants
aspirants
noun
plural of aspirant
aspiratae
aspirated
aspirated
adj
(French linguistics) In French, describing an initial letter h which, though silent, does not permit liaison or elision with the preceding word.
(phonetics) Pronounced with an audible breath, a brief expulsion of air at the end of the sound.
verb
simple past tense and past participle of aspirate
aspirates
aspirates
noun
plural of aspirate
aspirator
aspirator
noun
A pooter (device for collecting insects).
A pump for removing gases or liquids.
A pump which draws gas through a liquid.
astrophel
astrophel
Noun
A lover similar to that in the poem
astrophil
astrophil
noun
Obsolete form of astrophile.
athrepsia
athrepsia
noun
(pathology) Profound debility of children due to lack of food and to unhygienic surroundings.
atrophias
atrophias
noun
plural of atrophia
atrophies
atrophies
noun
plural of atrophy
atrophous
atropines
atropines
noun
plural of atropine
atropisms
attempers
attempers
verb
Third-person singular simple present indicative form of attemper
augurship
augurship
noun
(historical) The office (or period of office) of an augur in ancient Rome.
auriscalp
auriscalp
noun
An earpick.
auriscope
auriscope
noun
An instrument for examining the condition of the ear.
auriscopy
auriscopy
noun
(medicine) Examination of the ear using an auriscope.
austemper
austemper
verb
(transitive) To harden (a metal) and produce a stronger microstructure by heating it into the austenite region and then immediately quenching and removing any bainite and ausferrite.
autospore
autospore
noun
An immobile spore that cannot develop flagella.
autospray
autospray
noun
(medicine, countable, obsolete) A medicine provided in the form of a spray for topical application.
(uncountable) Automatic spraying.
auxospore
auxospore
noun
(biology) A reproductive spore in diatoms that is formed by the union of two cells
backdrops
backdrops
noun
plural of backdrop
backropes
backspear
backspeer
backspeir
backspier
backstrap
backstrap
noun
(drugs) The rolling a marijuana cigarette in a certain fashion
(firearms) The rearmost surface applied to the grip especially of a pistol below a possible beavertail.
A loin of meat consisting of the muscle on each side of the spine.
A pull strap extending the backstay of a boot or shoe.
An anchoring strap, passed around the waist or hips, for a small loom.