Definition from Wiktionary, the free dictionary
Alternative forms 
- First attested 1400–50.
- From Middle English abbreviacioun, from Middle French abréviation, from Late Latin abbreviātiō, from ab (“from”) + abbreviō (“make brief”), from Latin ad + breviō (“shorten”), from brevis (“short”).
abbreviation (plural abbreviations)
- The result of shortening or reducing; abridgment. [First attested around 1350 to 1470.]
- A shortened or contracted form of a word or phrase, used to represent the whole, utilizing omission of letters, and sometimes substitution of letters, or duplication of initial letters to signify plurality, including signs such as, +, =, @. [Late 16th century.]
- The process of abbreviating. [Mid 16th century.]
- (music) A notation used in music score to denote a direction, as pp or mf.
- (music) One or more dashes through the stem of a note, dividing it respectively into quavers, semiquavers, demisemiquavers, or hemidemisemiquavers.
- Any convenient short form used as a substitutuion for an understood or inferred whole.
- the phrase "civil rights" is an abbreviation for a whole complex of relationships. - Pres. Truman's comittee on Civil Rights
- (biology) Loss during evolution of the final stages of the ancestral ontogenetic pattern.
- (mathematics) Reduction to lower terms, as a fraction.
shortened or contracted form of a word or phrase
abridged version of a document
act or result of shortening or reducing
music: one or more dashes through the stem of a note
mathematics: reduction to lower terms
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Translations to be checked
See also 
- 2003 , Brown, Lesley editor, The Shorter Oxford English Dictionary, edition 5th, Oxford, UK: Oxford University Press, ISBN 978-0-19-860575-7, page 3: