Bible Dictionaries
Parenthesis

Webster's Dictionary

(1):

(n.) One of the curved lines () which inclose a parenthetic word or phrase.

(2):

(n.) 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.

Bibliography Information
Webster, Noah. Entry for 'Parenthesis'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/parenthesis.html. 1828.