Word Study
trichotomy
CIDE DICTIONARY
trichotomy, n. [Gr. tri`cha threefold, in three parts + te`mnein to cut or divide: cf. F. trichotomie.].
Division into three parts. [1913 Webster]
OXFORD DICTIONARY
trichotomy, n. (pl. -ies) a division (esp. sharply defined) into three categories, esp. of human nature into body, soul, and spirit.
Derivative
trichotomic adj.
Etymology
Gk trikha threefold f. treis three, after DICHOTOMY
ROGET THESAURUS
trichotomy
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 "trichotomy" in Webster Dictionary Online