TRITERNATE
Etymology
Adjective
triternate (not comparable)
(botany) Three times ternate; applied to a leaf whose petiole separates into three branches, each of which divides into three parts which each bear three leaflets.
Source: Wiktionary
Tri*ter"nate, a. Etym: [Pref. tri- + ternate.] (Bot.)
Definition: Three times ternate; -- applied to a leaf whose petiole
separates into three branches, each of which divides into three parts
which each bear three leafiets.
Source: Webster’s Unabridged Dictionary 1913 Edition