Noun
A 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.
One of the curved lines () which inclose a parenthetic word or phrase.
Source: Webster's dictionaryThe art of the parenthesis is one of the great secrets of eloquence in Society. Nicolas Chamfort
life's not a paragraph And death i think is no parenthesis. E. E. Cummings
The world -- A small parenthesis in eternity. Thomas Browne
A cigarette is a breathing space. It makes a parenthesis. The time of a cigarette is a parenthesis, and if it is shared, you are both in that parenthesis. Its like a proscenium arch for a dialogue. John Berger
"tt>/* This bit of chicanery makes a unary function followed by a parenthesis into a function with one argument, highest precedence. */. Larry Wall
we are for each other: then laugh, leaning back in my arms for life's not a paragraph and death i think is no parenthesis. E. E. Cummings