Manubrium

n. pl. L. Manubria (#), E. Manubriums (#).

1. (Anat.) A handlelike process or part; esp., the anterior segment of the sternum, or presternum, and the handlelike process of the malleus.
2. (Zoöl.) The proboscis of a jellyfish; -- called also hypostoma. See Illust. of Hydromedusa.