11-letter words containing a, i, s
- apparitions — Plural form of apparition.
- appeasingly — in an appeasing manner
- applescript — (language) An object-oriented shell language for the Macintosh, approximately a superset of HyperTalk.
- applicators — Plural form of applicator.
- appositions — Plural form of apposition.
- appositives — Plural form of appositive.
- appraisable — to estimate the monetary value of; determine the worth of; assess: We had an expert appraise the house before we bought it.
- appreciates — to be grateful or thankful for: They appreciated his thoughtfulness.
- apprentices — Plural form of apprentice.
- appressoria — a flattened and thickened tip of a hyphal branch, formed by some parasitic fungi, that facilitates penetration of the host plant.
- aprioristic — belief in, or reliance upon, a priori reasoning, arguments, or principles.
- aqua fortis — nitric acid
- aquaerobics — A form of aerobics done while in water.
- aquafitness — a keep-fit regime in which exercises are performed standing up in a swimming pool
- aquafortist — a person who makes engravings or etchings through the use of aqua fortis
- aquamarines — Plural form of aquamarine.
- aquanautics — the study or practice of undersea travel
- aquarellist — (arts) An artist who paints aquarelles.
- aquatintist — a person who creates aquatints
- arab spring — The Arab Spring is a period of time in and around 2011 to 2012 during which people in the Middle East and Africa tried to achieve democratic reforms.
- arabian sea — the NW part of the Indian Ocean, between Arabia and India
- arabidopsis — Any cress (or related plant) of the genus Arabidopsis.
- arabinoside — a glycoside yielding arabinose when hydrolysed
- arachis oil — peanut oil.
- araliaceous — of, relating to, or belonging to the Araliaceae, a chiefly tropical family of trees, shrubs, or woody climbers having small clusters of whitish or greenish flowers. The family includes the ivy and ginseng
- arbitraries — subject to individual will or judgment without restriction; contingent solely upon one's discretion: an arbitrary decision.
- arbitrators — Plural form of arbitrator.
- arborvitaes — Plural form of arborvitae.
- arboviruses — Plural form of arbovirus.
- archaeornis — an extinct primitive Jurassic bird, formerly placed in the genus Archaeornis but now thought to be a species of archaeopteryx
- archaicisms — Plural form of archaicism.
- archbishops — Plural form of archbishop.
- archdiocese — An archdiocese is the area over which an archbishop has control.
- archduchies — Plural form of archduchy.
- archenemies — Plural form of archenemy.
- archilochus — 7th century bc, Greek poet of Paros, notable for using his own experience as subject matter
- architraves — Plural form of architrave.
- archnemesis — A chief nemesis.
- archpriests — Plural form of archpriest.
- arctic seal — rabbit fur that has been sheared and dyed to simulate sealskin.
- arctic skua — a predatory gull-like bird, Stercorarius parasiticus, which harasses terns or gulls into dropping or disgorging fish they have caught; it breeds in northern Eurasia and North America
- arenicolous — growing or living in sand or sandy places
- argyllshire — (until 1975) a county of W Scotland, part of Strathclyde region (1975–96), now part of Argyll and Bute
- ari service — (company) The trading name of the remnants of AST Research, Inc.. ARI Services is a wholly owned subsidiary of Samsung Electronics Co. Ltd., of Seoul, Korea. They no longer manufacture or distribute computer hardware, but they continue to provide worldwide technical and service support to owners of systems that they manufactured. Headquarters: 16225 Alton Parkway, POB 57005, Irvine, California 92619-7005, USA.
- aristarchus — a crater in the NE quadrant of the moon, having a diameter of about 37 kilometres, which is the brightest formation on the moon
- aristocracy — The aristocracy is a class of people in some countries who have a high social rank and special titles.
- aristocrats — Plural form of aristocrat.
- aristoteles — a walled plain in the first quadrant of the face of the moon: about 60 miles (97 km) in diameter.
- arithmetics — Plural form of arithmetic.
- arkeologist — Someone who studies the story of Noah's Ark, particularly by searching for physical evidence which would corroborate it.