16-letter words containing a, r, t, s
- arteriosclerosis — Arteriosclerosis is a medical condition in which the walls of your arteries become hard and thick, so your blood cannot flow through them properly.
- arteriosclerotic — degenerative changes in the arteries, characterized by thickening of the vessel walls and accumulation of calcium with consequent loss of elasticity and lessened blood flow.
- arthroscopically — By means of arthroscopy.
- arthur wellesley — 1st Duke of (Arthur Wellesley"the Iron Duke") 1769–1852, British general and statesman, born in Ireland: prime minister 1828–30.
- arthus' reaction — a severe, local immune reaction to the injection of an antigen in a sensitized host.
- artistic license — (legal) The open source license applicable to Perl.
- as a last resort — If you do something as a last resort, you do it because you can find no other way of getting out of a difficult situation or of solving a problem.
- as distinct from — If you say that you are talking about one thing as distinct from another, you are indicating exactly which thing you mean.
- as right as rain — If you say that someone is as right as rain, you mean that they are completely well or healthy again, for example when they have recovered from an illness or a shock.
- ascending rhythm — rising rhythm.
- asparagus beetle — either of two leaf beetles of the genus Crioceris that feed on the asparagus plant in both the larval and adult stages.
- assembly routine — assembler (def 2a).
- assistant editor — a person who assists an editor in their work
- assistant priest — a person who assists a priest in their work or who is not yet fully qualified as a priest
- associate degree — An associate degree is a college degree that is awarded to a student who has completed a two-year course of study.
- associate member — a person who is a member of a club, organization etc. but has only partial rights and privileges or subordinate status
- association area — any of the regions of the cerebral cortex of the brain connected by numerous nerve fibers to all parts of both cerebral hemispheres and coordinating such higher activities as learning and reasoning.
- aston dark space — the dark region between the cathode and the cathode glow in a vacuum tube, occurring when the pressure is low.
- astroarchaeology — archaeoastronomy.
- astroengineering — (scifi) The construction of megastructures in space by technologically advanced beings.
- astrometeorology — the study of the theoretical effects of astronomical bodies and forces on the earth's atmosphere.
- astronomer royal — an honorary title awarded to an eminent British astronomer: until 1972, the Astronomer Royal was also director of the Royal Greenwich Observatory
- astrophotography — the photography of celestial bodies used in astronomy
- at daggers drawn — If you say that two people are at daggers drawn, you mean they are having an argument and are still very angry with each other.
- at one's leisure — when one has free time
- at the sharp end — If you say that someone is at the sharp end of a particular activity or type of work, you mean that they are involved in the most difficult or dangerous aspects of it.
- at-risk register — an official list of people or things considered to be exposed to possible threat, such as children in potentially abusive households or historic buildings in need of maintenance
- athanasian creed — a profession of faith widely used in the Western Church which, although formerly attributed to Athanasius, probably originated in Gaul between 381 and 428 ad
- atmospheric tide — a movement of atmospheric masses caused by the gravitational attraction of the sun and moon and by daily solar heating.
- atomic structure — the concept of an atom as a central positively charged nucleus consisting of protons and neutrons surrounded by a number of electrons. The number of electrons is equal to the number of protons: the whole entity is thus electrically neutral
- auditory aphasia — aphasia in which there is no comprehension of spoken words; word deafness.
- auditory vesicle — the pouch that is formed by the invagination of an ectodermal placode and that develops into the internal ear.
- aurora australis — the aurora seen around the South Pole
- australian crawl — a stroke in which the feet are kicked like paddles while the arms reach forward and pull back through the water
- australian rules — a game resembling rugby football, played in Australia between teams of 18 men each on an oval pitch, with a ball resembling a large rugby ball. Players attempt to kick the ball between posts (without crossbars) at either end of the pitch, scoring six points for a goal (between the two main posts) and one point for a behind (between either of two outer posts and the main posts). They may punch or kick the ball and run with it provided that they bounce it every ten yards
- australopithecus — an extinct genus of small-brained,large-toothed bipedal hominids that lived in Africa between one and four million years ago.
- austro-hungarian — of or relating to the Dual Monarchy of Austria-Hungary (1867–1918)
- authoritarianism — Authoritarianism is the state of being authoritarian or the belief that people with power, especially the State, have the right to control other people's actions.
- autofluorescence — (biology, microscopy) Self-induced fluorescence.
- autoregressively — In an autoregressive manner.
- autostereoscopic — Of or pertaining to autostereoscopy.
- autotransformers — Plural form of autotransformer.
- autotransfusions — Plural form of autotransfusion.
- average adjuster — a person who calculates average claims, esp for marine insurance
- aversion therapy — a method of suppressing an undesirable habit, such as excessive smoking, by causing the subject to associate an unpleasant effect, such as an electric shock or nausea, with the habit
- away from sb/sth — If something is away from a person or place, it is at a distance from that person or place.
- axis of symmetry — Mathematics. a straight line for which every point on a given curve has corresponding to it another point such that the line connecting the two points is bisected by the given line.
- axminster carpet — a type of patterned carpet with a cut pile
- bachelor of arts — a degree conferred on a person who has successfully completed his or her undergraduate studies, usually in a branch of the liberal arts or humanities
- bachelor-at-arms — bachelor (def 4).