12-letter words containing r, e, s, a
- aeroelastics — the study of aeroelastic phenomena.
- aeroembolism — an embolism of air bubbles often caused by surgery, induced abortion, or decompression sickness
- aeroneurosis — a functional disorder of aeroplane pilots characterized by anxiety and various psychosomatic disturbances, caused by insufficient oxygen at high altitudes and the emotional tension of flying
- aerosiderite — a meteorite which is composed mainly of iron
- aerosol bomb — a metal receptacle, containing an inert gas under pressure, that sprays an insecticide, disinfectant, or the like when the gas is released by opening a valve.
- aethrioscope — an instrument which measures temperature changes caused by different conditions of the sky
- affirmatives — Plural form of affirmative.
- afforestable — having the capacity to be turned into forest
- affranchised — Simple past tense and past participle of affranchise.
- aforestation — Alternative spelling of afforestation.
- africanness' — Also, Africa. of or from Africa; belonging to the black peoples of Africa.
- afrikanerism — a word, term, or usage peculiar to or originating among Afrikaners.
- 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.
- afterburners — Plural form of afterburner.
- aftereffects — Plural form of aftereffect.
- agaricaceous — belonging to the Agaricaceae, a family of fungi including mushrooms having blade-shaped gills on the underside of the cap.
- agency nurse — a nurse employed by an agency, rather than by a hospital
- agglomerates — Third-person singular simple present indicative form of agglomerate.
- aggregations — Plural form of aggregation.
- aggressively — characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
- aggressivity — the state or quality of being aggressive
- agribusiness — Agribusiness is the various businesses that produce, sell, and distribute farm products, especially on a large scale.
- 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
- aids-related — caused by or associated with the AIDS virus
- ailurophiles — Plural form of ailurophile.
- ailurophobes — Plural form of ailurophobe.
- air disaster — a very serious air crash in which in a lot of people are killed or injured
- 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 mattress — an inflatable mattress or pad, as of plastic or rubber, used for camping, as an extra bed, etc.
- air observer — observer (def 3).
- air pressure — the force of air pressing down on an area
- air-sea base — a centre from which military aircraft and naval vessels operate
- airpocalypse — (informal) The presence of dense smog in many parts of China.
- airtightness — the quality of being airtight
- alarm system — a set of electronic devices that trigger an alarm
- alaska range — a mountain range in S central Alaska. Highest peak: Mount McKinley, 6194 m (20 320 ft)
- albert speer — Albert [al-bert;; German ahl-bert] /ˈæl bərt;; German ˈɑl bɛrt/ (Show IPA), 1905–81, German Nazi leader: appointed by Hitler as official Nazi architect.
- alberti bass — a reiterated broken-chord figure used as an accompaniment, especially in 18th-century rococo keyboard music.
- alexanderson — Ernst F. W [urnst] /ɜrnst/ (Show IPA), 1878–1975, U.S. engineer and inventor.
- alexandrines — Plural form of alexandrine.
- alexandrinus — the Greek uncial codex, dating from the early 5th century a.d., originally containing the complete text of the Greek Old and New Testaments.
- algesiometer — an instrument for determining the sensitiveness of the skin to a painful stimulus.
- alhambresque — like the Alhambra, especially in richness of ornamentation
- alice's fern — Hartford fern.
- alieni juris — under the control of another, as a lunatic or infant.
- alkalimeters — Plural form of alkalimeter.