11-letter words containing o, s, t, r
- arkeologist — Someone who studies the story of Noah's Ark, particularly by searching for physical evidence which would corroborate it.
- arrestation — the slowing or stopping of the development or progress of something
- ars poetica — the art of poetry
- art history — study of art through the ages
- arthrodesis — the fusion of bones in a joint through surgery which causes immobility of the joint
- arthrograms — Plural form of arthrogram.
- arthroscope — a tubular instrument that is inserted into the capsule of a joint to examine the joint, extract tissue, etc
- arthroscopy — the use of an arthroscope to diagnose an injury to or disease of a joint or to perform minor surgery on a joint.
- arthrospore — a sporelike cell of ascomycetous fungi and some algae produced by a breaking of the hyphae
- asbestiform — having the look or structure of asbestos
- ascriptions — Plural form of ascription.
- asperations — Plural form of asperation.
- aspergation — the action of sprinkling, suffusing or irrigating with water
- asphyxiator — to produce asphyxia in.
- aspirations — a strong desire, longing, or aim; ambition: intellectual aspirations.
- asportation — the removal or taking away of something
- assertation — An assertion, statement of opinion.
- assimilator — to take in and incorporate as one's own; absorb: He assimilated many new experiences on his European trip.
- associators — Plural form of associator.
- assortative — Denoting or involving the preferential mating of animals or marrying of people with similar characteristics.
- assortments — Plural form of assortment.
- asteraceous — belonging to the Asterasceae, an alternative name for the plant family Compositae.
- asteroidean — an echinoderm of the class Asteroidea, comprising the starfishes.
- asteropaeus — a Trojan ally slain by Achilles.
- astral body — Astronomy. a star, planet, comet, or other heavenly body.
- astraphobia — a fear of thunder and lightning
- astroblemes — Plural form of astrobleme.
- astrobotany — the branch of botany that investigates the possibility that plants grow on other planets
- astrocytoma — a tumour of the nervous system which originates in and consists mainly of astrocytes
- astrogation — (in science fiction) navigation in outer space.
- astrography — The art of describing or delineating the stars; a description or mapping of the heavens.
- astrologers — Plural form of astrologer.
- astrologian — (obsolete) An astrologer.
- astrologist — the study that assumes and attempts to interpret the influence of the heavenly bodies on human affairs.
- astromancer — divination by means of the stars.
- astrometric — (astronomy) of or relating to astrometry.
- astronautic — Of or pertaining to astronautics.
- astronomers — Plural form of astronomer.
- astronomize — to practise or study astronomy or engage in astronomical matters
- astrophobia — A fear of stars and celestial space.
- astrophyton — The giant basket star, an early Mesozoic invertebrate.
- astrosphere — the part of the aster excluding the centrosome
- at a stroke — If something happens at a stroke or in one stroke, it happens suddenly and completely because of one single action.
- athermanous — capable of stopping radiant heat or infrared radiation
- atmosphered — having an intellectual or psychological climate or feeling
- atmospheres — Plural form of atmosphere.
- atmospheric — Atmospheric is used to describe something which relates to the Earth's atmosphere.
- atomtronics — (physics) The design, manufacture and study of analogs of electronics using atoms (especially Bose-Einstein condensates) at low temperature.
- atrabilious — irritable
- atramentous — similar to or as black as ink