13-letter words containing a, c, p, r
- apheliotropic — growing in a direction away from the sunlight
- aphrodisiacal — having an aphrodisiac quality
- apicoalveolar — articulated with the tip of the tongue in contact with or in approximation to the alveolar ridge.
- apocryphalist — A member of the group who supported the inclusion of the Apocrypha in the Bible.
- apoplectiform — of or resembling apoplexy or stroke.
- appeals court — An appeals court is the same as an appellate court.
- apperceptions — Plural form of apperception.
- apple orchard — an orchard planted with apple trees
- apple-knocker — Northern U.S. a rustic.
- appreciatable — (chiefly,esthetics) That can be appreciated or enjoyed.
- appreciations — Plural form of appreciation.
- apprenticeage — (obsolete) Apprenticeship.
- approach path — the course followed by an aircraft preparing for landing
- approach road — an access road to a house, station, airport, village etc
- approach shot — a shot made to or towards the green after a tee shot
- approval code — An approval code is a PIN or other verification code needed to authorize a payment going through the cash register.
- appurtenances — accessories or equipment
- arachnephobia — Misspelling of arachnophobia.
- arachniphobia — Alternative form of arachnophobia.
- arachnophobia — an abnormal fear of spiders
- arachnophobic — an abnormal or pathological fear of spiders.
- archaeopteryx — any of several extinct primitive birds constituting the genus Archaeopteryx, esp A. lithographica, which occurred in Jurassic times and had teeth, a long tail, well-developed wings, and a body covering of feathers
- archbishopric — the rank, office, or jurisdiction of an archbishop
- archeptolemus — (in the Iliad) the son of Iphitus who served as a charioteer for Hector.
- archipelagoes — Plural form of archipelago.
- arthroscopies — Plural form of arthroscopy.
- aryepiglottic — pertaining to or connecting the arytenoid cartilage and the epiglottis.
- aspartic acid — nonessential amino acid that is a component of proteins and acts as a neurotransmitter
- astroparticle — (astrophysics) A subatomic particle of cosmic origin.
- astrophysical — Of or pertaining to astrophysics.
- atmospherical — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- audiographics — audiographic teleconferencing
- autapomorphic — (biology) Describing any characteristic that has evolved in only a single species (or other taxon).
- autographical — Relating to, or used in, the process of autography.
- autoprojector — (theory) A self-applicable partial evaluator.
- back pressure — the pressure that opposes the motion of a piston on its exhaust stroke in an internal-combustion engine
- backdoor play — an offensive tactic whereby a player breaks away from a defender to receive a pass near the baseline in order to make a quick layup.
- backing group — a group of musicians providing an instrumental or vocal accompaniment for a pop singer
- bacteriophage — a virus that is parasitic in a bacterium and multiplies within its host, which is destroyed when the new viruses are released
- bacteriophagy — the action of a bacteriophage
- bacterioscopy — the examination of bacteria with a microscope.
- balch springs — a town in NE Texas.
- balsam spruce — either of two North American coniferous trees of the genus Picea, P. pungens (the blue spruce) or P. engelmanni
- band spectrum — a spectrum consisting of a number of bands of closely spaced lines that are associated with emission or absorption of radiation by molecules
- bargain price — a low price
- baroreceptors — Plural form of baroreceptor.
- basic process — Military. basic training. a soldier or airman receiving basic training.
- batch-process — to perform batch processing on (files)
- bell purchase — a tackle consisting of two standing single blocks, two running single blocks, a fall, and a runner, so arranged that it gives a mechanical advantage of six, neglecting friction.
- berber carpet — a type of plain coloured carpeting, usually cream, oatmeal or light brown