14-letter words containing a, c, o, r
- archencephalon — the primitive forebrain region of the embryo, anterior to the notochord, that gives rise to the midbrain and forebrain.
- archidiaconate — the office, term of office, or area of jurisdiction of an archdeacon
- archiepiscopal — of or associated with an archbishop
- architectonics — the science of architecture
- arctic monkeys — British rock group (formed 2002): comprising Alex Turner (born 1986; vocals, guitar), Jamie Cook (born 1985, guitar), Matt Helders (born 1986, drums, vocals) and Nick O'Malley (born 1985, bass guitar); their albums include Whatever People Say I Am, That's What I'm Not (2006), Favourite Worst Nightmare (2007), and AM (2013)
- arctic redpoll — a finch, Carduelis hornemanni, of the family Fringillidae, which breeds in tundra birch forest
- area vasculosa — that part of the area opaca in which the blood cells and vessels are formed.
- areal velocity — a measure of the velocity of one celestial body in orbit about another, equal to the area swept out per unit time by the vector joining the two bodies.
- aristocratical — aristocratic
- armor-piercing — (of bullets, artillery shells, etc.) designed especially for piercing armor.
- arms inspector — a person who carries out an arms inspection
- art collection — a collection of art works
- art historical — of or relating to the history of art or to its study: art historical documents on 16th-century painting.
- art-historical — of or concerned with the history of art
- arteriographic — relating to arteriography
- arthrocentesis — The clinical procedure of using a syringe to collect synovial fluid from a joint capsule, used in the diagnosis of gout, arthritis, and synovial infections.
- arthroconidium — A kind of asexual fungal spore, typically produced by segmentation of pre-existing fungal hyphae.
- artifactitious — of, relating to, or of the nature of an artifact, or a man-made object that carries cultural significance.
- artisoft, inc. — (company, networking) A company, known for the LANtastic range of networking products. Originally providers of proprietary, peer-to-peer network hardware and software for small installations, Artisoft now also sells Ethernet and Novell-compatible hardware and software. Telephone: +1 (800) 809 1257. Address: Tucson, Arizona, USA; Phoenix, Arizona, USA.
- assault course — An assault course is an area of land covered with obstacles such as walls which people, especially soldiers, use to improve their skills and strength.
- asthenospermic — (medicine) Characterised by or pertaining to asthenospermia, hence infertile.
- asthenospheric — relating to the asthenosphere
- astrochemistry — the study of the chemistry of celestial bodies and space, esp by means of spectroscopy
- astrocompasses — Plural form of astrocompass.
- astrologically — In an astrological manner.
- astronomically — of, relating to, or connected with astronomy.
- astrophysicist — An astrophysicist is someone who studies astrophysics.
- asynchronicity — (uncountable) The state of being asynchronous.
- asynchronistic — Not synchronistic.
- asynchronously — In an asynchronous manner.
- at close range — If you see or hit something at close range or from close range, you are very close to it when you see it or hit it. If you do something at a range of half a mile, for example, you are half a mile away from it when you do it.
- at one's mercy — compassionate or kindly forbearance shown toward an offender, an enemy, or other person in one's power; compassion, pity, or benevolence: Have mercy on the poor sinner.
- atomic orbital — Physics, Chemistry. a wave function describing the state of a single electron in an atom (atomic orbital) or in a molecule (molecular orbital) the electron in that state.
- atomic reactor — reactor (def 4).
- atomic veteran — a veteran of the armed forces who was exposed to radioactivity during the testing or use of nuclear (atomic) weapons in World War II or subsequent wars.
- atomic warfare — war in which nuclear weapons are used
- atomic-powered — powered by atomic energy
- auction bridge — a variety of bridge, now generally superseded by contract bridge, in which all the tricks made score towards the game
- auditory canal — the narrow passageway from the outer ear to the eardrum.
- auger-electron — a nonradiative process in which an atom in an excited state undergoes a transition to a lower state by the emission of a bound electron (Auger electron) rather than by the emission of an x-ray.
- austro-asiatic — a hypothetical phylum or superfamily of languages consisting of Mon-Khmer and certain other languages of India and South-East Asia. Links with Malayo-Polynesian have also been suggested
- author catalog — a catalog whose entries are listed by author, editor, compiler, translator, or other party considered to have responsibility for the creation or assembly of the work specified.
- autobiographic — marked by or dealing with one's own experiences or life history; of or in the manner of an autobiography: autobiographical material; an autobiographical novel.
- autocollimator — an instrument combining the functions of a telescope and collimator, for detecting and measuring very small deviations in a beam of light.
- autocoprophagy — the consumption of one's own faeces
- autocorrelator — (electronics) A device that modifies a signal with a delayed copy of itself in order to detect any periodic signal hidden in the noise.
- autocovariance — (statistics) The covariance of a signal with another part of the same signal.
- autocratically — In an autocratic manner.
- autodestructed — Simple past tense and past participle of autodestruct.
- automatic door — a self-opening door