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Definition of Three-sided
1. Adjective. Having three sides. "A trilateral figure"
Exact synonyms: Triangular, Trilateral
Similar to: Many-sided, Multilateral
Derivative terms: Triangle, Triangularity
Similar to: Many-sided, Multilateral
Derivative terms: Triangle, Triangularity
Medical Definition of Three-sided
1. Having three sides, especially three plane sides; as, a three-sided stem, leaf, petiole, peduncle, scape, or pericarp. Source: Websters Dictionary (01 Mar 1998)