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Definition of Trisulcate
1. a. Having three furrows, forks, or prongs; having three grooves or sulci; three-grooved.
Definition of Trisulcate
1. Adjective. Having three sulci or grooves. ¹
¹ Source: wiktionary.com
Medical Definition of Trisulcate
1. Marked by three grooves. (05 Mar 2000)