parenthesis
nounEither or both of the upright curved lines, (β), used to mark off explanatory or qualifying remarks in writing or printing or enclose a sum, product, or other expression considered or treated as a collective entity in a mathematical operation.
nounA qualifying or amplifying word, phrase, or sentence inserted within written matter in such a way as to be independent of the surrounding grammatical structure.
nounA comment departing from the theme of discourse; a digression.
nounAn interruption of continuity; an interval.
nounAn explanatory or qualifying clause, sentence, or paragraph inserted in another sentence or in the course of a longer passage, without being grammatically connected with it.
nounThe upright curves (β) collectively, or either of them separately, used by printers and writers to mark off an interjected explanatory clause or qualifying remark: as, to place a word or clause in parenthesis or within parentheses.
nounAn interval; a break; an episode.
nounAbbreviated par.
nounA word, phrase, or sentence, by way of comment or explanation, inserted in, or attached to, a sentence which would be grammatically complete without it. It is usually inclosed within curved lines (see def. 2 below), or dashes.