pa ‧ ren ‧ the ‧ sis /pəˈrenθəsəs, pəˈrenθɪsəs/ BrE AmE noun ( plural parentheses /-siːz/) [countable usually plural]
[ Date: 1500-1600 ; Language: Late Latin ; Origin: Greek , from parentithenai 'to put in' ]
1 . a round ↑ bracket
in parentheses
The figures in parentheses refer to page numbers.
2 . in parenthesis British English , in parentheses American English if you say something in parenthesis, you say it while you are talking about something else in order to add information or explain something:
In parenthesis, I should add that the results have not yet been proven.
⇨ ↑ punctuation mark