Definify.com
Webster 1913 Edition
Bipinnatifid
Biˊpin-nat′i-fid
,Adj.
[Pref.
bi-
+ pinnatifid
.] (Bot.)
Doubly pinnatifid.
A bipinnatifid leaf is a pinnatifid leaf having its segments or divisions also pinnatifid. The primary divisions are pinnæ and the secondary pinnules.