Definify.com
Webster 1913 Edition
Three-parted
Three′-partˊed
,Adj.
Divided into, or consisting of, three parts; tripartite.
Three-parted leaf
(Bot.)
, a leaf divided into three parts down to the base, but not entirely separate.
Webster 1828 Edition
Three-parted
THREE'-P`ARTED
,Adj.