Word Study
trifid
CIDE DICTIONARY
trifid, a. [L. trifidus; tri- (see Tri-) + the root of findere to split: cf. F. trifide.].
Cleft to the middle, or slightly beyond the middle, into three parts; three-cleft. [1913 Webster]
OXFORD DICTIONARY
trifid, adj. esp. Biol. partly or wholly split into three divisions or lobes.
Etymology
L trifidus (as TRI-, findere fid- split)
ROGET THESAURUS
trifid
Trisection
N trisection, tripartition, trichotomy, third, third part, trifid, trisected, tripartite, trichotomous, trisulcate, Triadelphous, triangular, tricuspid, tricapsular, tridental, tridentate, tridentiferous, trifoliate, trifurcate, trigonal, trigrammic, trigrammatic, tripetalous, tripodal, tripodic, triquetral, triquetrous.For further exploring for "trifid" in Webster Dictionary Online