Phys. [f. BI- pref.2 II + L. venter belly.] A muscle, distinguished by its two bellies or bulges; esp. the digastric muscle.
1706. in Phillips.
1740. B. Martin, Bibl. Technol., xi. (ed. 2), 371. Muscles … as the Biventer, which hath two Bellies.
1843. J. Wilkinson, Swedenborg’s Anim. Kingd., I. ii. 62. The biventer, or digastricus … arises from the incisure under the mastoid process.
