Bi′pin‐nat″i‐fid (�), a. [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.
Webster's Dictionary 1913
Bi′pin‐nat″i‐fid (�), a. [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.