'Hypostoma' definitions:
Definition of 'Hypostoma'
From: GCIDE
- Hypostome \Hy"po*stome\, Hypostoma \Hy*pos"to*ma\, n. [NL. hypostoma, fr. Gr. "ypo` beneath + ? mouth.] (Zool.) The lower lip of trilobites, crustaceans, etc. [1913 Webster]
Definition of 'hypostoma'
From: GCIDE
- Manubrium \Ma*nu"bri*um\, n.; pl. L. Manubria, E. Manubriums. [L., handle, fr. manus hand.] [1913 Webster]
- 1. (Anat.) A handlelike process or part; esp., the anterior segment of the sternum, or presternum, and the handlelike process of the malleus. [1913 Webster]
- 2. (Zool.) The proboscis of a jellyfish; -- called also hypostoma. See Illust. of Hydromedusa. [1913 Webster]