(noun) shortening something by omitting parts of it
(noun) a shortened form of a word or phrase
Source: WordNet® 3.1
abbreviation (countable and uncountable, plural abbreviations)
The result of shortening or reducing; abridgment. [First attested around 1350 to 1470.]
(linguistics) 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 substitution for an understood or inferred whole.
(biology) Loss during evolution of the final stages of the ancestral ontogenetic pattern.
(mathematics) Reduction to lower terms, as a fraction.
• abbreviature; abridgement; abstract; compend; compression; condensation; contraction; curtailment; epitome; reduction; shortcut; summary
• amplification; dilation; enlargement; expansion; expatiation; extension; production
• (linguistics): acronym (employing initial letters or syllables); initialism (employing initial letters); symbol, sign (employing marks other than letters)
Ab*bre`vi*a"tion, n. Etym: [LL. abbreviatio: cf. F. abbréviation.]
1. The act of shortening, or reducing.
2. The result of abbreviating; an abridgment. Tylor.
3. The form to which a word or phrase is reduced by contraction and
omission; a letter or letters, standing for a word or phrase of which
they are a part; as, Gen. for Genesis; U.S.A. for United States of
Definition: One dash, or more, through the stem of a note, dividing it
respectively into quavers, semiquavers, or demi-semiquavers. Moore.
Source: Webster’s Unabridged Dictionary 1913 Edition