Webster's Revised Unabridged Dictionary · 1913

Trimestrial

Trimestrial , adjective

Of or pertaining to a trimester, or period of three months; occurring once in every three months; quarterly.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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