12-letter words containing r, o, s
- afrocentrism — centered on Africa or on African-derived cultures, as those of Brazil, Cuba, and Haiti: Afrocentric art.
- after a sort — to some extent
- after-school — After-school activities are those that are organized for children in the afternoon or evening after they have finished school.
- agaricaceous — belonging to the Agaricaceae, a family of fungi including mushrooms having blade-shaped gills on the underside of the cap.
- agglomerates — Third-person singular simple present indicative form of agglomerate.
- aggravations — Plural form of aggravation.
- aggregations — Plural form of aggregation.
- aggrupations — Plural form of aggrupation.
- agriproducts — Plural form of agriproduct.
- agrobusiness — the businesses collectively associated with the production, processing, and distribution of agricultural products.
- agroforester — a person who carries out agroforestry
- agroforestry — a method of farming integrating herbaceous and tree crops
- agroindustry — an activity combining agriculture and industry
- ailurophiles — Plural form of ailurophile.
- ailurophobes — Plural form of ailurophobe.
- air division — an organizational unit smaller than an air force, usually composed of a headquarters and two or more wings
- air embolism — the presence in the tissues and blood of a gas, such as air or nitrogen bubbles, caused by an injection of air or, in the case of nitrogen, by an abrupt and substantial reduction in the ambient pressure
- air observer — observer (def 3).
- airbrush out — to remove evidence of (someone or something from photographs, books, or history)
- airpocalypse — (informal) The presence of dense smog in many parts of China.
- alexanderson — Ernst F. W [urnst] /ɜrnst/ (Show IPA), 1878–1975, U.S. engineer and inventor.
- algesiometer — an instrument for determining the sensitiveness of the skin to a painful stimulus.
- allegoristic — writing or using allegory; interpreting in an allegorical sense.
- allegrissimo — (music) A direction in musical notation indicating that the musical piece should be played very fast and lively.
- allelomorphs — Plural form of allelomorph.
- allomorphism — variation in the crystalline form of a chemical compound
- allosauruses — Plural form of allosaurus.
- alstroemeria — any plant of the tuberous perennial liliaceous genus Alstroemeria, originally S American, grown for their brightly coloured orchid-like flowers
- altercations — Plural form of altercation.
- alternations — Plural form of alternation.
- alto-stratus — a cloud of a class characterized by a generally uniform gray sheet or layer, lighter in color than nimbostratus and darker than cirrostratus: of medium altitude, about 8000–20,000 feet (2450–6100 meters).
- alton towers — a 19th-century Gothic Revival mansion with extensive gardens in NW central England, in Staffordshire: site of a large amusement park
- ambidextrous — Someone who is ambidextrous can use both their right hand and their left hand equally skilfully.
- ambisextrous — Informal. sexually attracted to both sexes; bisexual. used by or suitable for either sex; unisex: ambisextrous hair styles.
- ambulatories — Plural form of ambulatory.
- amentiferous — bearing aments
- among others — used to indicate that there are several more people like the one or ones mentioned, but that you do not intend to mention them all
- amortisation — Alternative spelling of amortization.
- amourousness — Rare spelling of amorousness.
- amphicarpous — producing two kinds of fruit that differ either in form or in time of ripening.
- amphitropous — (of a plant ovule) partially inverted so that the base and the micropyle at the apex are the same distance from the funicle
- an iron fist — a cruel and unyielding attitude or approach
- anachronisms — Plural form of anachronism.
- anachronists — Plural form of anachronist.
- anacrogynous — having the female sex organs arising from any cell below the apex of the stem, thereby not terminating its growth, as certain liverworts.
- anaerobiosis — life in the absence of oxygen
- anamorphoses — Plural form of anamorphosis.
- anamorphosis — an image or drawing distorted in such a way that it becomes recognizable only when viewed in a specified manner or through a special device
- anaphrodisia — diminished sexual desire.
- anchorperson — the primary reporter on a news television broadcast