(biology) Not having a proto-spinal chord at any stage of development.
achorion
achorn
achorn
noun
(Chester) An acorn.
achroacyte
achroacyte
noun
(cytology) Any colourless cell (especially a lymphocyte)
achroanthes
achrodextrin
achrodextrin
noun
(biochemistry, cytology) A form of dextrin that is not colourable by iodine
achrodextrinase
achroglobin
achroiocythaemia
achroiocythemia
achroite
achroite
noun
(mineralogy) A colourless form of tourmaline
achroma
achromacyte
achromacyte
noun
(cytology) Any cell that lacks its normal pigmentation (especially an erythrocyte that has ruptured and lost its haemoglobin)
achromasia
achromasia
noun
Absence of normal skin pigmentation (from bruising, stress or disease); pallor or achromia.
The inability of a cell or tissue to be stained.
achromat
achromat
noun
(optics) A lens that imparts little color; a lens that is achromatic.
achromate
achromatiaceae
achromatic
achromatic
adj
(biology) Uncolored; not absorbing color from a fluid; -- said of tissue
(music) Having only the diatonic notes of the scale; not modified by accidentals.
(optics) Free from color; transmitting light without color-related distortion.
Being achromatic in subject
Containing components such as achromatic lenses and prisms, designed to prevent color-related distortion.
achromatically
achromatically
adv
In an achromatic manner.
achromaticity
achromaticity
noun
(optics) The state or quality of being achromatic.
achromatin
achromatin
noun
(biology) Tissue that is not stained by fluid dyes.
achromatinic
achromatinic
adj
(cytology, of a cell nucleus) Lacking the ability to be coloured by a stain.
achromatisation
achromatise
achromatise
verb
Non-Oxford British English standard spelling of achromatize.
achromatised
achromatised
verb
simple past tense and past participle of achromatise
achromatising
achromatising
verb
present participle of achromatise
achromatism
achromatism
noun
(optics) The state or quality of being achromatic; achromaticity.
Achromatopia.
The state of being free of colors, not emitting or separating into colors.
achromatisms
achromatisms
noun
plural of achromatism
achromatium
achromatizable
achromatization
achromatization
noun
The act or process of achromatizing.
achromatize
achromatize
verb
(transitive) To deprive of colour; to make achromatic.
(transitive) To remove chromatic aberration from an optical system
achromatized
achromatized
verb
simple past tense and past participle of achromatize
achromatizes
achromatizes
verb
Third-person singular simple present indicative form of achromatize
achromatizing
achromatizing
verb
present participle of achromatize
achromatocyte
achromatocyte
noun
achromacyte
achromatolysis
achromatolysis
noun
(cytology) dissolution of achromatin
achromatope
achromatope
noun
A person who has achromatopia.
achromatophil
achromatophil
noun
(cytology) A cell (or tissue) that is not readily coloured by stains
achromatophile
achromatophile
adj
Being or relating to an achromatophil.
achromatophilia
achromatophilia
noun
(cytology) The condition of being an achromatophil
achromatophilic
achromatopia
achromatopia
noun
defective ability to see colours
achromatopsia
achromatopsia
noun
achromatopia
achromatopsy
achromatopsy
noun
color blindness; inability to distinguish colors; daltonism, achromatopia
achromatosis
achromatosis
noun
(pathology) achromia, albinism
achromatous
achromatous
adj
Lacking normal colour; colourless
achromats
achromats
noun
plural of achromat
achromaturia
achromaturia
noun
(pathology) The lack of pigments (especially bile pigments) in the urine
achromia
achromia
noun
(medicine) Absence of pigmentation, especially in the skin or blood
achromic
achromic
adj
(sciences) Uncoloured; not pigmented; lacking in colour.
achromobacter
achromobacterieae
achromoderma
achromoderma
noun
(pathology) A lack of pigmentation in the skin
achromophilous
achromophilous
adj
Not chromophilous.
achromotrichia
achromotrichia
noun
The absence (or loss) of pigmentation in the hair.
achromous
achromous
adj
colorless; achromatic
achromycin
achronical
achronical
adj
(astronomy) Alternative form of achronic
achronism
achronychous
achroodextrin
achroodextrin
noun
Alternative form of achrodextrin
achroodextrinase
achroous
achroous
adj
Colorless; achromatic.
achropsia
achylous
achylous
adj
(physiology) Without chyle
achymous
achymous
adj
(physiology) Without chyme.
achyrodes
acichlorid
acichloride
acidophil
acidophil
noun
(immunology) An eosinophil; a white blood cell responsible for combating infection by parasites in the body.
One of the endocrine acidophilic cells of the adenohypophysis, including somatotrophs and lactotrophs.
acidophile
acidophile
noun
A plant that thrives in relatively acid soil.
An organism that lives and thrives under acidic conditions; a form of extremophile.
acidophiles
acidophiles
noun
plural of acidophile
acidophilic
acidophilic
adj
Easily stained with acidic dyes, such as eosin.
Thriving under acidic conditions; relating to or being an acidophile.
acidophilous
acidophilous
adj
That thrives in an acidic environment
acidophilus
acidophilus
noun
Lactobacillus acidophilus, one of the bacteria commonly used in fermenting yogurt
acidosteophyte
acidosteophyte
noun
(medicine) A sharp or needle-shaped osteophyte.
ackworth
acocanthera
acocantherin
acocantherin
noun
Alternative form of acokantherin
acoenaesthesia
acolhua
acolhuan
acoluthic
acoluthic
adj
Pertaining to a residual sense impression immediately following a stimulus, as with an afterimage
acolyth
acolyth
noun
Obsolete form of acolyte.
acolythate
acolythate
noun
The office of an acolyte
acouchi
acouchi
noun
Any of several rodents of the genus Myoprocta of the family Dasyproctidae, smaller than agoutis, which inhabit Amazonia.
acouchy
acouchy
noun
Alternative form of acouchi
acouophonia
acousticophobia
acousticophobia
noun
Fear of noise.
acquophonia
acridophagus
acridophagus
noun
(rare) One who eats grasshoppers and locusts
acritochromacy
acritochromacy
noun
(archaic, medicine) Color blindness, achromatopsia.
acroaesthesia
acroaesthesia
noun
(pathology) hyperaesthesia, especially that affects the hands or feet
acroanesthesia
acroanesthesia
noun
Alternative form of acroanaesthesia
acroarthritis
acroarthritis
noun
(pathology) arthritis in the joints of the hands or feet
acroasphyxia
acroasphyxia
noun
(pathology) Impaired circulation to the fingers
acrobatholithic
acrobatholithic
adj
Relating to the upward-projecting dome of a batholith
acrocephalia
acrocephalia
noun
(medicine) A deformity of the head in which the top is more or less pointed.
acrocephalic
acrocephalic
adj
Possessing a pointed skull.
noun
A person suffering from a pointed skull.
acrocephalous
acrocephalous
adj
(pathology) Of or pertaining to acrocephaly
acrocephaly
acrocephaly
noun
The condition of suffering from a pointed skull.
acrochordidae
acrochordinae
acrochordon
acrochordon
noun
(medicine) A soft, pedunculated or pensile wart, consisting of myomatous or edematous fibrous tissue, often found on the neck or eyelids of elderly persons.
acrocorinth
acroesthesia
acroesthesia
noun
Alternative spelling of acroaesthesia
acrography
acrography
noun
A method of relief etching on wood, metal, or stone by means of a coating of compressed chalk, invented by Louis Schonberg in 1841.
An organizing principle for written lists, based on initial glyphs.
Decorative plaster work of various styles used in middle eastern architecture.
acrolith
acrolith
noun
(historical) An ancient Greek wooden statue furnished with a rupestral head and limbs.
acrolithan
acrolithan
Adjective
Relating to, or like, an acrolith.
acrolithic
acrolithic
adj
Relating to, or like, an acrolith.
acroliths
acroliths
noun
plural of acrolith
acromiohumeral
acromiohumeral
adj
(anatomy) Relating to the acromion and the humerus
acromiohyoid
acromiothoracic
acromiothoracic
adj
thoracoacromial
acromphalus
acromphalus
noun
(pathology) An abnormal protrusion of the navel that sometimes leads to umbilical hernia
acronichal
acronichally
acronych
acronychal
acronychal
adj
Alternative form of acronical
acronychally
acronychous
acroparesthesia
acroparesthesia
noun
(medicine) severe pain in the extremities
acropathology
acropathology
noun
(pathology, rare) The study of diseases of the limbs or the extremities.
acropathy
acropathy
noun
Any disease specific to the extremities.
acrophobia
acrophobia
noun
phobia or strong fear of being high above ground level
acrophobias
acrophobias
noun
plural of acrophobia
acrophonetic
acrophonetic
adj
Of or pertaining to acrophony.
acrophonic
acrophonic
adj
Conforming to acrophony.
acrophonically
acrophonically
adv
In an acrophonic way.
acrophonies
acrophonies
noun
plural of acrophony
acrophony
acrophony
noun
The naming of letters in an alphabetic writing system using words whose initial sounds are represented by the respective letters.
acrorhagus
acrorhagus
noun
Any of a set of marginal tubercles of sea anemones containing specialized nematocysts
acrorrheuma
acrosphacelus
acrostichal
acrostichal
adj
(entomology, of bristles) Situated on the mesothorax of some dipteran flies
acrosticheae
acrostichic
acrostichic
adj
Being or relating to an acrostic.
acrostichoid
acrostichoid
adj
(botany, of a fern) Whose sori densely cover the underside of the frond like a felt, without visible gaps between them.
acrostichum
acrothoracica
acrotrophic
acrotrophic
adj
(biology, of an insect) Having nutritive cells at the top of the follicular tube
acrotrophoneurosis
actinautographic
actinautographic
adj
(obsolete, photography) That produces a developable impression on light-sensitive material without contact
actinautography
actinautography
noun
(obsolete, photography) The production of an actinautographic image
actiniochrome
actiniochrome
noun
A red to violet pigment present in some Actinozoa
actiniohematin
actiniohematin
noun
A pigment (mixture of cytochromes) present in the sea anemone Actinia equina
actiniomorpha
actinobranch
actinobranch
noun
(biology) An organ, in some anthozoans, that functions as a gill