11-letter words starting with a
- acquittance — a release from or settlement of a debt, etc
- acraldehyde — acrolein.
- acriflavine — a brownish or orange-red powder used in medicine as an antiseptic and disinfectant. Formula: C14H14N3Cl
- acrimonious — Acrimonious words or quarrels are bitter and angry.
- acroamatics — Esoteric lectures.
- acrocarpous — (of mosses) having clustered upright stems and the reproductive parts borne at the tip of a stem
- acrocentric — (of a chromosome) having the centromere at one end
- acrocephaly — oxycephaly
- acrochordon — (medicine) A soft, pedunculated or pensile wart, consisting of myomatous or edematous fibrous tissue, often found on the neck or eyelids of elderly persons.
- acrocinesia — (pathology) Excessive movement of the limbs.
- acrocorinth — the citadel of ancient Corinth: strategic in the control of the Isthmus of Corinth; extensive ruins.
- acrodynamic — Lb linguistics acrokinetic.
- acrokinesia — (pathology) Alternative form of acrocinesia.
- acromegalia — (disease) An alternative name for the disease acromegaly.
- acromegalic — (pathology) Pertaining to or characteristic of acromegaly. (from 19th c.).
- acronymania — a great enthusiasm for creating acronyms
- acropetally — in an upward direction, towards the apex
- acropolises — Plural form of acropolis.
- acrylamides — Plural form of acrylamide.
- act curtain — Theater. a curtain for closing the proscenium opening between acts or scenes.
- act warning — notification from the manager advising the performers of the amount of time left before they must appear onstage.
- acting area — the part of a stage used by the actors: Confine the acting area for this scene to downstage.
- actinic ray — a ray of light of short wavelengths, as ultraviolet or violet, that produces photochemical effects.
- actinically — In an actinic manner.
- actinodrome — (of a leaf) palmately veined.
- actinograph — a recording actinometer
- actinometer — an instrument for measuring the intensity of radiation, esp of the sun's rays
- actinometry — The measurement of the heating power of electromagnetic radiation, especially that of solar radiation.
- actinomyces — a genus of bacteria that causes disease in humans and improves soil ecology
- actinomycin — any of several toxic antibiotics obtained from bacteria of the genus Streptomyces, used in treating some cancers; the most commonly used is dactinomycin (actinomycin D)
- actinostele — (botany) A type of protostele, in which the core of vascular tissue in the stem extends outward in lobes.
- action film — a film with a fast-moving plot, usually containing scenes of violence
- action hero — the hero in an action film
- action line — a telephone line maintained by a newspaper, television station, or other medium to provide the public a ready means of expressing complaints or obtaining information about matters of vital interest.
- action plan — a statement of the steps that need to be taken to achieve a particular goal or objective
- action shot — a still photograph that shows someone or something in motion
- action verb — a verb, as run, think, or soothe, that expresses something that a person, animal, object, or process in nature can do, as in Close the door! or The storm is flooding many houses along the coast, rather than expressing a state of being. Compare copula (def 2), stative.
- activations — Plural form of activation.
- active dbms — (database) A conventional or passive DBMS combined with a means of event detection and condition monitoring. Event handling is often rule-based, as with an expert system.
- active duty — Active duty means the same as active service.
- active list — a list of officers available for full duty
- active mass — the effective concentration of a substance.
- active site — the part of an enzyme that interacts with the substrate during catalysis.
- actor-proof — (of a role or script) effective even if poorly acted.
- actual cost — the cost of a product based on incurred costs of material and labor required in its production.
- actualising — Present participle of actualise.
- actualistic — the doctrine that all reality is animate or in motion.
- actualities — Plural form of actuality.
- actualizing — Present participle of actualize.
- actuarially — in an actuarial manner