7-letter words starting with a
- acridid — locust (def 1).
- acridly — In a harsh or corrosive manner.
- acrilan — an acrylic fibre or fabric, characterized by strength, softness, and crease-resistance and used for clothing, upholstery, carpets, etc
- acrobat — a person noted for his frequent and rapid changes of position or allegiances
- acrogen — any flowerless plant, such as a fern or moss, in which growth occurs from the tip of the main stem
- acronic — acronical
- acronym — An acronym is a word composed of the first letters of the words in a phrase, especially when this is used as a name. An example of an acronym is NATO which is made up of the first letters of the 'North Atlantic Treaty Organization'.
- acroter — a plinth bearing a statue, etc, at either end or at the apex of a pediment
- acrotic — relating to the surface
- acrylic — Acrylic material is artificial and is manufactured by a chemical process.
- acrylyl — of, consisting of, or containing the monovalent group CH2:CHCO-
- act one — (language, specification) A specification language.
- act out — If you act out an event which has happened, you copy the actions which took place and make them into a play.
- actable — that can be acted
- actaeon — a hunter of Boeotia who, having accidentally seen Artemis bathing, was turned into a stag and torn apart by his own hounds
- actinal — of or denoting the oral part of a radiate animal, such as a jellyfish, sea anemone, or sponge, from which the rays, tentacles, or arms grow
- actinia — any sea anemone of the genus Actinia, which are common in rock pools
- actinic — (of radiation) producing a photochemical effect
- actinin — a contractile protein of muscle.
- actino- — indicating a radial structure
- actinon — a radioisotope of radon that is a decay product of radium. Symbol: An or 219Rn; atomic no: 86; half-life: 3.92s
- actions — an independent agency created in 1971 to administer domestic volunteer programs.
- actives — engaged in action; characterized by energetic work, participation, etc.; busy: an active life.
- activex — a set of technologies for integrating software components on the internet
- activin — a peptide that is synthesized in the pituitary gland and gonads and stimulates the secretion of FSH.
- actorly — of, relating to, or characteristic of an actor
- actress — An actress is a woman whose job is acting in plays or films.
- actuals — Plural form of actual.
- actuary — An actuary is a person who is employed by insurance companies to calculate how much they should charge their clients for insurance.
- actuate — If a person is actuated by an emotion, that emotion makes them act in a certain way. If something actuates a device, the device starts working.
- aculeus — a prickle or spine, such as the thorn of a rose
- acumens — keen insight; shrewdness: remarkable acumen in business matters.
- acushla — darling: a term of endearment
- acutely — If you feel or notice something acutely, you feel or notice it very strongly.
- acutest — Superlative form of acute.
- acyclic — not cyclic; having an open chain structure
- acylate — to introduce one or more acyl groups into a compound
- acylium — (organic chemistry) Any acyl cation R-C+=O derived from a carboxylic acid.
- acyloin — an organic compound containing a hydroxyl group attached to a carbonyl group
- acyloxy — (organic chemistry) A univalent radical R-COO-, derived from a carboxylic acid.
- ad fin. — to the end; at the end
- ad loc. — at or to the place
- ad val. — ad valorem
- adagial — proverbial
- adagios — Plural form of adagio.
- adaline — (architecture) Name given by Widrow to adaptive linear neurons, that is neurons (see McCulloch-Pitts) which learn using the Widrow-Huff Delta Rule. See also Madaline.
- adamant — If someone is adamant about something, they are determined not to change their mind about it.
- adamawa — a state of Nigeria, in the E on the border with Cameroon. Capital: Yola. Pop: 3 168 101 (2006). Area: 36 917 sq km (14 254 sq miles)
- adament — Misspelling of adamant.
- adamite — a human being