Manubrium /(?)/

Ma·nu·bri·um

Manubrium

n.

pl. Manubria, Manubriums

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