12-letter words containing y, e, t, a
- antihydrogen — hydrogen in which the nucleus is an antiproton with an orbiting positron
- antihysteric — acting to counter hysteria
- antipyretics — Plural form of antipyretic.
- antisymmetry — the correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point; regularity of form or arrangement in terms of like, reciprocal, or corresponding parts.
- anzus treaty — Australia, New Zealand, and the United States, especially as associated in the mutual defense treaty (ANZUS Pact or ANZUS Treaty) of 1952.
- aperiodicity — not periodic; irregular.
- appendectomy — the surgical removal of the vermiform appendix
- appetisingly — Alternative spelling of appetizingly.
- appetizingly — in an appetizing way
- appreciatory — appreciative.
- araeosystyle — (of columned buildings) having an alternately very wide and very narrow intercolumniation
- archaeometry — the use of science and modern technology in archaeology to examine and interpret archaeological remains
- archeopteryx — A specimen of the species Archaeopteryx lithographica, being the earliest and most primitive known bird, representing a transition in the evolution of dinosaurs to birds.
- archetypally — the original pattern or model from which all things of the same kind are copied or on which they are based; a model or first form; prototype.
- archetypical — Archetypical means the same as archetypal.
- aromatherapy — Aromatherapy is a type of treatment which involves massaging the body with special fragrant oils.
- array theory — (theory) A theory developed by Trenchard More Jr. and used as the basis for the NIAL language. Papers are available from the IBM Cambridge Scientific Center, Cambridge MA.
- arsenopyrite — a white or grey metallic mineral consisting of a sulphide of iron and arsenic that forms monoclinic crystals with an orthorhombic shape: an ore of arsenic. Formula: FeAsS
- arteriopathy — Any disease of the arteries.
- articulately — uttered clearly in distinct syllables.
- artilleryman — a serviceman who serves in an artillery unit
- artillerymen — Plural form of artilleryman.
- artiodactyle — (zoology) One of the Artiodactyla, a group of ungulates.
- artzybasheff — Boris Mikhailovich [bawr-is mi-kahy-luh-vich,, bor-;; Russian buh-ryees myi-khahy-luh-vyich] /ˈbɔr ɪs mɪˈkaɪ lə vɪtʃ,, ˈbɒr-;; Russian bʌˈryis myɪˈxaɪ lə vyɪtʃ/ (Show IPA), 1899–1965, U.S. illustrator and writer, born in Russia.
- ascomycetous — belonging or pertaining to the Ascomycota.
- assaultively — in an assaultive manner
- assumptively — taken for granted.
- astringently — In the manner of an astringent.
- astrogeology — the study of the structure, composition, and history of other planets and other bodies in the solar system
- asymmetrical — Something that is asymmetrical has two sides or halves that are different in shape, size, or style.
- at any price — If you want something at any price, you are determined to get it, even if unpleasant things happen as a result.
- at eye level — at the height of somebody's eyes
- at the ready — If you have something at the ready, you have it in a position where it can be quickly and easily used.
- athletically — physically active and strong; good at athletics or sports: an athletic child.
- attorneyship — The office or profession of an attorney.
- attractively — In an attractive manner; with the power of attracting or drawing to.
- audio system — integrated equipment for producing amplified sound, as in a hi-fi or a mobile disco, or as a public-address system on stage
- authenticity — the quality or state of being authentic; reliability; genuineness
- autoanalyzer — any of various automatic devices that test and analyze chemicals, blood, etc.
- autocatalyse — to cause an internal, self-produced, chemical reaction
- autocatalyze — To cause, or to undergo autocatalysis.
- autoeciously — in an autoecious manner
- autogenously — In an autogenous manner; spontaneously.
- axisymmetric — being symmetrical around an axis
- ayuntamiento — (in Spain) a municipal council
- baby boomlet — a period of increase in the birthrate, smaller than a baby boom, as in the U.S. during the 1980s and 1990s.
- baby brother — a younger brother
- baby's-tears — a mosslike plant, Soleirolia (or Helxine) soleirolii, of the nettle family, native to Corsica and Sardinia, having small, roundish leaves and minute flowers.
- bacteriology — Bacteriology is the science and the study of bacteria.
- balletically — in a balletic fashion; gracefully