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Noun: parenthesis (parentheses)  pu'ren-thi-sis
  1. Either of two punctuation marks, "(" or ")", used to enclose textual material
    - bracket [Brit], round bracket [Brit]
  2. A message that departs from the main subject
    - digression, aside, excursus, divagation

Derived forms: parentheses

Type of: content, message, punctuation, punctuation mark [Brit], subject matter, substance

Encyclopedia: Parenthesis