12-letter words containing a, c, o, y
- acceleratory — Accelerative.
- accompanying — provided at the same time as something else as an extra or addition; supplementary
- accompanyist — accompanist.
- accretionary — Of, pertaining to, or in the form of an accretion.
- acetone body — ketone body
- acetyl group — the univalent group, CH 3 CO–, derived from acetic acid.
- achlamydeous — (of flowers such as the willow) having neither petals nor sepals
- achlorhydria — the absence of free hydrochloric acid in the gastric juice
- achlorhydric — relating to a lack of gastric hydrochloric acid
- achromatopsy — Color blindness; inability to distinguish colors; daltonism, achromatopia.
- acoustically — with reference to acoustics; from the standpoint of acoustics
- acrocyanosis — cyanosis of the hands and feet due to poor circulation of the blood
- acrostically — In the manner of an acrostic.
- actinomorphy — The condition of being actinomorphic.
- actinomycete — any bacterium of the group Actinomycetes, usually filamentous in form
- actinomycins — Plural form of actinomycin.
- acylglycerol — (organic chemistry) Any ester of glycerol; glyceride.
- adjudicatory — relating to adjudication
- adolescently — in an adolescent manner
- advance copy — a copy of a book, speech etc released to the media, reviewers, etc before it is published, delivered, etc and before it is necessarily in its final state
- aerodynamics — Aerodynamics is the study of the way in which objects move through the air.
- agnostically — a person who holds that the existence of the ultimate cause, as God, and the essential nature of things are unknown and unknowable, or that human knowledge is limited to experience. Synonyms: disbeliever, nonbeliever, unbeliever; doubter, skeptic, secularist, empiricist; heathen, heretic, infidel, pagan.
- agony column — In a British newspaper or magazine, the agony column contains letters from readers about their personal problems, and advice on what to do about them.
- agranulocyte — a white blood cell without granules in its cytoplasm
- airpocalypse — (informal) The presence of dense smog in many parts of China.
- alcoholicity — the strength of an alcoholic liquor
- alphitomancy — the use of barley meal as a means of divination.
- alveolectomy — The surgical reshaping of the alveolar ridge to facilitate dental prosthesis.
- alyce clover — a tropical perennial clover (Alysicarpus vaginalis) sometimes used as a cover crop and for fodder
- aminobutyric — (organic chemistry) Of or pertaining to any of several isomeric univalent radicals in which a hydrogen atom of a butyric radical is replaced by an amino group.
- amitotically — the direct method of cell division, characterized by simple cleavage of the nucleus without the formation of chromosomes.
- amphictyonic — of or relating to an amphictyon or an amphictyony.
- amyl alcohol — a colourless flammable liquid existing in eight isomeric forms that is used as a solvent and in the manufacture of organic compounds and pharmaceuticals. Formula: C5H11OH
- anacrogynous — having the female sex organs arising from any cell below the apex of the stem, thereby not terminating its growth, as certain liverworts.
- analogically — In an analogical manner; in the manner of an analogy.
- anatomically — of or relating to anatomy.
- anchovy pear — a Jamaican tree, Grias cauliflora, bearing edible fruits that taste like the mango: family Lecythidaceae
- anisocytosis — (medicine) Significant size variation of blood cells.
- annunciatory — to announce.
- anthocyanine — Alternative form of anthocyanin.
- anthocyanins — Plural form of anthocyanin.
- anthropodicy — An attempt, or argument attempting, to justify the existence of humanity as good (contrast theodicy).
- anticipatory — An anticipatory feeling or action is one that you have or do because you are expecting something to happen soon.
- anticyclones — Plural form of anticyclone.
- anticyclonic — Of, relating to, or consisting of an anticyclone.
- antimonarchy — Opposing a monarchy.
- antisocially — In an antisocial manner.
- apagogically — in an apagogical manner
- aperiodicity — not periodic; irregular.
- apocalyptist — the writer of the Apocalypse or a related work
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