(ichthyology) Any member of the Acipenseridae (the true sturgeons)
acknowledge
acknowledge
verb
(transitive) To admit the knowledge of; to recognize as a fact or truth; to declare one's belief in
(transitive) To be grateful of (e.g. a benefit or a favour)
(transitive) To own as genuine or valid; to assent to (a legal instrument) to give it validity; to avow or admit in legal form.
(transitive) To own or recognize in a particular quality, character or relationship; to admit the claims or authority of; to give recognition to.
(transitive) To report (the receipt of a message to its sender).
acmesthesia
acmesthesia
noun
(pathology) The sensitivity of the skin to a sharp point (such as a pinprick)
acocanthera
acoelomates
acoelomates
noun
plural of acoelomate
acouophonia
acoustician
acoustician
noun
One versed in acoustics, especially a physicist who specializes in acoustics.
acquaintant
acquaintant
noun
(rare) An acquaintance.
acquainting
acquainting
verb
present participle of acquaint
acquiescent
acquiescent
adj
resting satisfied or submissive; disposed tacitly to submit
willing to acquiesce, accept or agree to something without objection, protest or resistance
acquiescing
acquiescing
verb
present participle of acquiesce
acquiesence
acquirement
acquirement
noun
(now rare, chiefly in the plural) Something that has been acquired; an attainment or accomplishment.
The act or fact of acquiring something; acquisition.
acquisition
acquisition
noun
(computing) The process of sampling signals that measure real world physical conditions and converting these signals into digital numeric values that can be manipulated by a computer.
The act or process of acquiring.
The thing acquired or gained; a gain.
acquisitive
acquisitive
adj
(obsolete) Acquired.
Able or disposed to make acquisitions; acquiring.
Dispositioned toward acquiring and retaining information.
acquisitors
acquisitors
noun
plural of acquisitor
acquittance
acquittance
noun
(now historical) A writing which is evidence of a discharge; a receipt in full, which bars a further demand.
(now historical) The release from a debt, or from some obligation or duty; exemption.
(now rare) Payment of debt; settlement.
(now rare) The acquittal of one's duties; the carrying out of fulfilment of a job or role.
(obsolete) The dismissal of a legal charge against someone; acquittal.
verb
(transitive, obsolete) To acquit.
acquophonia
acraldehyde
acraldehyde
noun
(organic chemistry) Synonym of acrolein
acrasiaceae
acraspedote
acraspedote
adj
Relating to jellyfish of the class Acraspeda
acraturesis
acridnesses
acriflavine
acriflavine
noun
(medicine) An antimicrobial flavonoid dye derived from acridine
acrimonious
acrimonious
adj
(archaic) Harsh and sharp, or bitter and not pleasant to the taste; acrid, pungent.
(figuratively) Angry, acid, and sharp in delivering argumentative replies: bitter, mean-spirited, sharp in language or tone.
acrindoline
acroamatics
acroamatics
noun
esoteric lectures.
acrobatical
acrobatical
adj
Alternative form of acrobatic
acrocarpous
acrocarpous
adj
(botany) Developing the archegonium on the summit of the primary stem; fruiting at tips, in the manner of mosses.
acrocentric
acrocentric
adj
(genetics) (of a chromosome) Having the centromere very near to one end, and thus having a long arm, and a very short arm.
noun
A chromosome that has the centromere very near to one end, and thus has a long arm, and a very short arm.
acrocephaly
acrocephaly
noun
The condition of suffering from a pointed skull.
acroceridae
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.
acroclinium
acroclinium
noun
Any Australian plant of the former genus Acroclinium (now named Rhodanthe)
acrocorinth
acrodactyla
acrodontism
acrodromous
acrodromous
adj
(botany) Alternative form of acrodrome
acromegalia
acromegalia
noun
(pathology) Alternative form of acromegaly.
acromegalic
acromegalic
adj
(pathology) Pertaining to or characteristic of acromegaly.
noun
(pathology) A person affected by acromegaly.
acromphalus
acromphalus
noun
(pathology) An abnormal protrusion of the navel that sometimes leads to umbilical hernia
acromyodian
acromyodian
noun
Any passerine songbird of the former taxon Acromyodi
acromyodous
acromyodous
adj
Synonym of acromyodic
acronically
acronycally
acronycally
adv
In an acronycal manner; rising when the sun sets, and vice versa.
acronychous
acronyctous
acronyctous
adj
(astronomy) acronycal
acronymized
acronymized
verb
simple past tense and past participle of acronymize
acropetally
acropetally
adv
In an acropetal manner.
acrophobias
acrophobias
noun
plural of acrophobia
acrophonies
acrophonies
noun
plural of acrophony
acropolises
acropolitan
acropolitan
adj
Of or befitting an acropolis, especially in lofty glory and in the capacity to inspire awe; compare Acropolitan.
acrorrheuma
acrospiring
acrospiring
verb
present participle of acrospire
acrosporous
acrosporous
adj
having acrospores
acrostichal
acrostichal
adj
(entomology, of bristles) Situated on the mesothorax of some dipteran flies
acrostichic
acrostichic
adj
Being or relating to an acrostic.
acrostichum
acrosticism
acrosticism
noun
Acrostic arrangement or character.
acrostolion
acrostolium
acrotarsial
acrotarsial
adj
Relating to the acrotarsium
acrotarsium
acrotarsium
noun
(zoology) The instep of the foot (front of the tarsus)
acrotrophic
acrotrophic
adj
(biology, of an insect) Having nutritive cells at the top of the follicular tube
acrylamides
acrylamides
noun
plural of acrylamide
actaeonidae
actiniarian
actiniarian
noun
Any sea anemone of the order Actiniaria
actinically
actinically
adv
In an actinic manner.
actinoblast
actinodrome
actinodrome
adj
Alternative form of actinodromous
actinograph
actinograph
noun
A recording actinometer.
actinolites
actinolites
noun
plural of actinolite
actinolitic
actinolitic
adj
(mineralogy) Of the nature of, or containing, actinolite.
actinologue
actinologue
noun
(biology) Part of an actinomere
actinomeric
actinomeric
adj
Relating to actinomeres
actinometer
actinometer
noun
(physics) A device used to measure the heating power of electromagnetic radiation, especially that of solar radiation.
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.
actinomycin
actinomycin
noun
(biochemistry, pharmacology) Any of a class of toxic polypeptide antibiotics found in soil bacteria of genus Streptomyces.
actinophone
actinophone
noun
An apparatus for the production of sound by the action of the actinic, or ultraviolet, rays.
actinophore
actinophore
noun
(biology) A cartilaginous spine that supports the fin rays of fish
actinophrys
actinopteri
actinoscopy
actinoscopy
noun
(medicine, archaic) Radiology; examination by means of an X-ray machine.
actinostome
actinostome
noun
(zoology) The mouth or anterior opening of a coelenterate animal.
actionizing
actionizing
verb
present participle of actionize
activations
activations
noun
plural of activation
actomyosins
actomyosins
noun
plural of actomyosin
actualising
actualising
verb
present participle of actualise
actualistic
actualistic
adj
(archaeology) Relating to actual use
Relating to action or the actual
actualities
actualities
noun
plural of actuality
actualizing
actualizing
verb
present participle of actualize
actuarially
actuarially
adv
By actuarial principles.
From an actuarial perspective.
In a manner performed by an actuary.
actuaryship
actuaryship
noun
The role or status of actuary.
acuesthesia
acuminating
acuminating
verb
present participle of acuminate
acumination
acumination
noun
A sharpening; termination in a sharp point; a tapering point.
acuminulate
acuminulate
adj
(rare) Somewhat or slightly acuminate.
acupressure
acupressure
noun
(countable) An act or instance of applying an acupressure technique.
(dated) A mode of arresting hemorrhage resulting from wounds or surgical operations, by passing under the divided vessel a needle, the ends of which are left exposed externally on the cutaneous surface.
(uncountable) An alternative medicine technique, derived from acupuncture, in which physical pressure is applied to acupoints.
acupuncture
acupuncture
noun
The insertion of needles into the (living) tissue of the body, especially for purposes of pain relief.
verb
(transitive) To treat with acupuncture.
acutangular
acutangular
adj
(geometry) acute-angled.
acutenesses
acutenesses
noun
plural of acuteness
acutilobate
acutonodose
acyclically
acyclically
adv
In an acyclic manner; without cycles.
adairsville
adamantlies
adamantness
adaptations
adaptations
noun
plural of adaptation
adaptedness
adaptedness
noun
(countable) The result of being adapted.
(uncountable) The state of being adapted; suitableness; fitness.
adaptionism
adaptionism
noun
Alternative form of adaptationism
adaptometer
adaptometer
noun
An optometric instrument that measures the minimum threshold of brightness that can be detected or how well the human eye can adapt to a recently darkened environment.
adarbitrium
addictively
addictively
adv
In an addictive manner.
addisoniana
additionary
additionary
adj
Synonym of additional
additionist
additionist
noun
(rare) One who supports or implements a policy of adding something.
addititious
addititious
adj
(rare, obsolete) Additive; Increasing.
addleheaded
addleheaded
Adjective
Addled; confused; stupid; flustered.
addressable
addressable
adj
Able to be addressed.
adelantados
adelocerous
adelochorda
adelphogamy
adelphogamy
noun
A form of polyandry where a woman is married to two or more brothers.
Marriage between a brother and a sister.
adelpholite
adenanthera
adenectopia
adenectopic
adenization
adenochrome
adenochrome
noun
A red pigment present in the branchial heart tissue of the octopus
adenodermia
adenogenous
adenography
adenography
noun
(anatomy) The division of anatomy describing the glands
adenoiditis
adenoiditis
noun
(medicine) Inflammation of the adenoid in the human throat.
adenolipoma
adenolipoma
noun
(oncology) A benign lipoma of a gland containing both glandular and fat tissue.
adenomatome
adenomatous
adenomatous
adj
Of or pertaining to adenoma
adenomyxoma
adenoneural
adenopodous
adenotyphus
adeptnesses
adeptnesses
noun
plural of adeptness
adglutinate
adherescent
adiagnostic
adiagnostic
adj
(geology) Difficult to identify.
adiamorphic
adiantiform
adiaphanous
adiaphanous
adj
Not transparent; not translucent; not diaphanous; opaque.
adiaphorism
adiaphorism
noun
The belief that certain religious doctrines or ceremonies are indifferent, i.e. do not matter.
adiaphorist
adiaphorist
noun
One who believes in adiaphorism.
adiaphorite
adiaphorite
Noun
One who believes in adiaphorism; an adiaphorist.
adiaphorous
adiaphorous
adj
neither harmful nor beneficial
adiathermal
adiathermal
adj
(thermodynamics) adiabatic; not involving transmission of heat