1. enclosed or set off with parentheses; placed within parentheses
Usage: British spelling; American English uses 'parenthesized'; past tense and past participle of 'parenthesise'
2. inserted as a parenthetical remark or digression
Usage: figurative use

Examples

• The author parenthesised the additional information to avoid interrupting the main narrative.
• All citations were parenthesised according to the style guide.
• She parenthesised her comment about the budget as a side note.
• The translator parenthesised uncertain words to indicate ambiguity in the original text.
• Technical terms were parenthesised with their definitions for clarity.