Webster's Revised Unabridged Dictionary · 1913

Triparted

Triparted , adjective

[Prefix tri- + parted.]

1.
(Heraldry) Parted into three piece; having three parts or pieces; -- said of the field or of a bearing; as, a cross triparted.
2.
(Botany) Divided nearly to the base into three segments or lobes.