Tĕt'ra-pĕt'al-oŭs, a.
a. [Gr. τέτρα, four, and πέταλον, a leaf; Fr. tétra-pétale.] (Bot.) Containing four distinct petals or flower leaves; as, a tetrapetalous corol.
a. [Gr. τέτρα, four, and πέταλον, a leaf; Fr. tétra-pétale.] (Bot.) Containing four distinct petals or flower leaves; as, a tetrapetalous corol.