(organic chemistry) The diketone CH₃COCH₂COCH₃ used as a solvent and as a coordination ligand
acetylamine
acetylaminobenzene
acetylaniline
acetylasalicylic
acetylate
acetylate
verb
(chemistry) To react with acetic acid or one of its derivatives; to introduce one or more acetyl groups into a substance
acetylated
acetylated
adj
That has been reacted with acetic acid (or one of its derivatives), or has been modified by the attachment of acetyl groups.
verb
simple past tense and past participle of acetylate
acetylating
acetylating
verb
present participle of acetylate
acetylation
acetylation
noun
(organic chemistry) The reaction of a substance with acetic acid or one of its derivatives; the introduction of one or more acetyl groups into a substance.
acetylations
acetylations
noun
plural of acetylation
acetylative
acetylative
adj
Causing or relating to acetylation.
acetylator
acetylator
noun
(biochemistry) A human being or other organism that can metabolize certain drugs by acetylating them (to a greater or lesser extent).
acetylbenzene
acetylbenzene
noun
acetophenone
acetylbenzoate
acetylbenzoic
acetylbiuret
acetylcarbazole
acetylcellulose
acetylcholine
acetylcholine
noun
(biochemistry) A neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CH₃COOCH₂CH₂N⁺(CH₃)₃.
acetylcholinesterase
acetylcholinesterase
noun
(biochemistry) An enzyme that catalyzes the hydrolysis of the neurotransmitter acetylcholine into choline and acetic acid.
acetylcholinic
acetylcholinic
adj
(biochemistry) Of or relating to acetylcholine.
acetylcyanide
acetylenation
acetylenation
noun
(organic chemistry) Conversion into, or reaction with an acetylene
acetylene
acetylene
noun
(organic chemistry, countable) Any organic compound having one or more carbon–carbon triple bonds; an alkyne.
(organic chemistry, uncountable) Ethyne; the simplest alkyne, a hydrocarbon of formula HC≡CH. It is a colourless, odorless, extremely flammable, explosive gas, formerly used as an illuminating gas, but now used in welding and metallurgy.
A lamp powered by acetylene, particularly a motor vehicle headlight.
acetylenediurein
acetylenes
acetylenes
noun
plural of acetylene
acetylenic
acetylenic
adj
(organic chemistry) Of or pertaining to acetylene or its derivatives; having a carbon-to-carbon triple bond
acetylenogen
acetylenyl
acetylenyl
noun
(organic chemistry) Any radical derived from an acetylene, but especially ethynyl
acetylfluoride
acetylglycin
acetylglycine
acetylglycine
noun
(organic chemistry) The N-acetyl derivative of glycine
acetylhydrazine
acetylhydrazine
noun
(organic chemistry) The acylhydrazine of acetic acid CH₃CO-NH-NH₂
acetylic
acetylic
adj
(organic chemistry) Of or pertaining to acetyl.
acetylid
acetylide
acetylide
noun
(organic chemistry) Any organic compound derived from acetylene or a terminal acetylene by replacing a hydrogen atom with a metal.
acetyliodide
acetylizable
acetylizable
adj
Able to be acetylized.
acetylization
acetylization
noun
Synonym of acetylation
acetylize
acetylize
verb
Synonym of acetylate
acetylized
acetylized
verb
simple past tense and past participle of acetylize
acetylizer
acetylizer
noun
Synonym of acetylator
acetylizing
acetylizing
verb
present participle of acetylize
acetylmethylcarbinol
acetylmethylcarbinol
noun
(organic chemistry) acetoin
acetylperoxide
acetylphenol
acetylphenylhydrazine
acetylrosaniline
acetyls
acetyls
noun
plural of acetyl
acetylsalicylate
acetylsalicylate
noun
(organic chemistry) the acetyl derivative of salicylate; any salt or ester of acetylsalicylic acid
acetylsalicylic
acetylsalicylic
adj
(organic chemistry) Describing any derivative of salicylic acid in which the phenolic hydroxyl has been acetylated.
acetylsalol
acetyltannin
acetyltannin
noun
(organic chemistry) Synonym of acetyltannic acid
acetylthymol
acetyltropeine
acetylurea
acey
acheilary
achievability
achievability
noun
The state or condition of being achievable.
achlamydate
achlamydate
adj
(zoology) Not possessing a mantle.
achlamydeae
achlamydeous
achlamydeous
adj
(botany) having no perianth
achroacyte
achroacyte
noun
(cytology) Any colourless cell (especially a lymphocyte)
achroiocythaemia
achroiocythemia
achromacyte
achromacyte
noun
(cytology) Any cell that lacks its normal pigmentation (especially an erythrocyte that has ruptured and lost its haemoglobin)
achromatocyte
achromatocyte
noun
achromacyte
achyranthes
achyranthes
noun
plural of achyranthe
achyrodes
acidimetrically
acidimetrically
adv
(chemistry) By means of, or in terms of, acidimetry.
acidimetry
acidimetry
noun
(chemistry) The measurement of the strength of acids, especially by a chemical process based on the law of chemical combinations, or the fact that, to produce a complete reaction, a certain definite weight of reagent is required.
acidometry
acidometry
noun
Alternative form of acidimetry
acidoproteolytic
acidoproteolytic
adj
Relating to acidoproteolytes
acidosteophyte
acidosteophyte
noun
(medicine) A sharp or needle-shaped osteophyte.
ackerley
ackerly
ackey
ackey
noun
A silver coin once used in the Gold Coast (in Africa)
ackeys
ackeys
noun
plural of ackey
ackley
acknowledgedly
acknowledgedly
adv
Confessedly, admittedly.
aclydes
acolyctine
acolyctine
noun
(organic chemistry) An organic base, in the form of a white powder, obtained from Aconitum lycoctonum.
acolyte
acolyte
noun
(Christianity) An altar server.
(Christianity) One who has received the highest of the four minor orders in the Catholic Church, being ordained to carry the wine, water and lights at Mass.
An attendant, assistant or follower.
acolytes
acolytes
noun
plural of acolyte
acolythate
acolythate
noun
The office of an acolyte
acondylose
acondylose
adj
Alternative form of acondylous
acopyrine
acotyledon
acotyledon
noun
(botany) A plant that has no cotyledons, as the dodder and all flowerless plants.
acotyledonous
acotyledonous
adj
Having no seed lobes, as the dodder; also applied to plants which have no true seeds, as ferns, mosses, etc.
acoumetry
acoumetry
noun
The measuring of the power or extent of hearing.
acquiescency
acquiescency
noun
The quality of being acquiescent; acquiescence.
acquiescently
acquiescently
adv
In an acquiescent manner.
acquiescingly
acquiescingly
adv
in an acquiescing manner
acquisitively
acquisitively
adv
In an acquisitive manner; for the purpose of acquisition.
acraldehyde
acraldehyde
noun
(organic chemistry) Synonym of acrolein
acrocephaly
acrocephaly
noun
The condition of suffering from a pointed skull.
acrogenously
acrogenously
adv
In an acrogenous manner.
acrogynae
acromegaly
acromegaly
noun
(pathology) A chronic disease marked by enlargement of the bones of the extremities, face, and jaw that is caused by over-activity of the pituitary gland.
acronymize
acronymize
verb
(transitive) To turn a phrase into an acronym.
acronymized
acronymized
verb
simple past tense and past participle of acronymize
acropetally
acropetally
adv
In an acropetal manner.
acrylaldehyde
acrylaldehyde
noun
(organic chemistry) The unsaturated aldehyde acrolein
acrylamides
acrylamides
noun
plural of acrylamide
acrylate
acrylate
noun
(organic chemistry) Any salt or ester of acrylic acid.
acrylates
acrylates
noun
plural of acrylate
acrylonitrile
acrylonitrile
noun
(organic chemistry) A toxic colourless liquid organic compound, CH₂=CH.CN, synthesized from propylene and ammonia; used as a monomer in the production of acrylic resins and synthetic rubber.
actinenchyma
actinochemistry
actinochemistry
noun
The science of chemistry and actinism.
actinoelectrically
actinoelectricity
actinoelectricity
noun
photoconductivity
actinometricy
actinometry
actinometry
noun
the measurement of the chemical or actinic energy of light
the measurement of the heating power of electromagnetic radiation, especially that of solar radiation
actinomyces
actinomyces
noun
A bacterium (species) of the genus Actinomyces.
actinomycese
actinomycesous
actinomycestal
actinomycetaceae
actinomycetal
actinomycetal
adj
Of or relating to the Actinomycetales, an order of Actinobacteria.
actinomycetales
actinomycete
actinomycete
noun
Any of various filamentous or rod-shaped bacteria, of the order Actinomycetales, that resemble fungi. Some actinomycetes are pathogens and some are sources of antibiotics.
actinomycetous
actinomycetous
adj
Of or relating to actinomycetes.
actinopterygian
actinopterygian
adj
Of the nature of fish of the class Actinopterygii.
noun
(zoology) Any of the ray-finned fish of the taxonomic class Actinopterygii.
actinopterygii
actinopterygious
actinostereoscopy
actinotherapy
actinotherapy
noun
(medicine) The treatment of disease, especially skin disease, by exposure to ultraviolet light; radiotherapy.
actipylea
actively
actively
adv
(grammar) In the active form; not passive.
In an active manner.
actressy
actressy
adj
Characteristic of an actress
Histrionic or theatrical
acutely
acutely
adv
In an acute manner
acyanoblepsia
acyanoblepsia
noun
Inability to see the colour blue.
acyesis
acyesis
noun
(medicine) The inability to conceive; sterility.
(medicine) The state of not being pregnant.
acyetic
acylamidobenzene
acylase
acylase
noun
(biochemistry) Any enzyme that catalyses the removal of acyl groups, especially from acylated amino acids.
acylate
acylate
verb
(transitive, organic chemistry) To add one or more acyl groups to a compound.
acylated
acylated
adj
(organic chemistry) Having an acyl functional group; modified by addition of an acyl group
verb
simple past tense and past participle of acylate
acylates
acylates
verb
Third-person singular simple present indicative form of acylate
acylogen
acyloxymethane
adaptively
adaptively
adv
In an adaptive manner; with adaptation; in a fitting manner
addedly
addedly
adv
In addition; additionally.
addictively
addictively
adv
In an addictive manner.
additamentary
additively
additively
adv
In an additive manner.
addleheadedly
addressability
addressability
noun
(computer graphics) The capability of a display surface or storage device to accommodate a specified number of uniquely identifiable points.
(computing) The capability of a microprocessor etc. to deal with values of a certain size using a single instruction.
(micrographics) The capability of a specified field frame to contain a specific number of uniquely identifiable points.
adebayo
adelphogamy
adelphogamy
noun
A form of polyandry where a woman is married to two or more brothers.
Marriage between a brother and a sister.
adelphophagy
adelphophagy
noun
The consumption of one embryo by another in utero, particularly among certain amphibians, sharks and fishes
adenalgy
adenectomy
adenectomy
noun
(medicine) The removal of all or part of the adenoid glands by surgery.
adenocyst
adenocystoma
adenocystoma
noun
(pathology) An adenoma in which the neoplastic glandular epithelium forms cysts