12-letter words containing s, a, u, r
- anemochorous — (of a fruit, seed, or spore) adapted for dispersion by wind.
- aneurysmatic — (medicine) Describing a blood vessel that has an aneurysm; aneurysmal.
- angiocarpous — being or having fruit contained in a vessel such as a shell
- angularities — Plural form of angularity.
- ankylosaurus — a plant-eating dinosaur of the Cretaceous period that had a tail resembling a club and a body covering of thick scales
- annunciators — Plural form of annunciator.
- anotherguess — of a different type or kind; different
- anthocarpous — resembling or pertaining to an anthocarp
- antibarbarus — a list of words and sayings to be avoided in the classical usage of a language
- anticonsumer — opposed to consumerism
- antineutrons — Plural form of antineutron.
- antipleasure — opposed to pleasure
- antiquarians — Plural form of antiquarian.
- antirrhinums — Plural form of antirrhinum.
- anzus treaty — Australia, New Zealand, and the United States, especially as associated in the mutual defense treaty (ANZUS Pact or ANZUS Treaty) of 1952.
- apfelstrudel — apple strudel
- apiculturist — beekeeping, especially on a commercial scale for the sale of honey.
- apple sucker — a small homopterous insect, Psyllia mali, originally of Europe, that is a serious pest of apple crops.
- appressorium — a flattened hypha of a parasitic fungus that penetrates the host tissues
- arbitrageurs — Plural form of arbitrageur.
- arc spectrum — a spectrum formed from the light produced by an electric arc, characteristic of the gas or vapor through which the arc passes.
- arch support — a rigid support placed inside a shoe so that its molded form fits the arch of the foot and relieves strain on the muscles of the foot while walking, standing, etc.
- arched truss — a truss having an archlike form but unlike a true arch in that it is free to move horizontally at its base, as in expanding or contracting because of temperature changes.
- archesporium — archespore.
- archosaurian — belonging to or characteristic of the archosaurs
- arenaviruses — Plural form of arenavirus.
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- army surplus — used or unused articles of military clothing, equipment, etc previously allocated to or intended for the use of army personnel but now sold off to members of the public
- arousability — to stimulate sexually.
- arquebusiers — harquebusier.
- arseniferous — Lb geology Containing or producing arsenic.
- arseniureted — combined with arsenic
- arseno group — the bivalent group −As=As−.
- arsino group — the univalent group H 2 As−.
- arthur evans — Sir Arthur John, 1851–1941, English archaeologist.
- articulators — Plural form of articulator.
- arts council — an organization that provides funding for a variety of arts activities
- arts student — a person studying an arts subject
- as per usual — as usual
- ash-coloured — silver-grey in colour
- ashurbanipal — died ?626 bc, king of Assyria (?668–?626): son of Esarhaddon. He built the magnificent palace and library at Nineveh
- assurbanipal — Ashurbanipal
- astronautics — the science and technology of space flight
- astrotourist — a person who pays to travel into space as a form of recreation
- astroturfing — a PR tactic used in politics and advertising in which actors are paid to display overt and apparently spontaneous grassroots support for a particular product, policy, or event
- asynchronous — An asynchronous electric machine is one in which the magnetic field and the rotation are not exactly the same.
- at all hours — If you say that something happens at all hours of the day or night, you disapprove of it happening at the time that it does or as often as it does.
- atheromatous — a sebaceous cyst.
- atmospherium — an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
- attributions — Plural form of attribution.