Defn: One of the Pentamera.
PENTAMEROUS
Pen*tam"er*ous, a. Etym: [Penta- + Gr.
1. (Biol.)
Defn: Divided into, or consisting of, five parts; also, arranged in sets, with five parts in each set, as a flower with five sepals, five petals, five, or twice five, stamens, and five pistils.
2. (Zoöl.)
Defn: Belonging to the Pentamera.
PENTAMERUS
Pen*tam"e*rus, n. Etym: [NL. See Pentamerous.] (Paleon.)
Defn: A genus of extinct Paleozoic brachiopods, often very abundant in the Upper Silurian. Pentamerus limestone (Geol.), a Silurian limestone composed largely of the shells of Pentamerus.
PENTAMETER
Pen*tam"e*ter, n. Etym: [L., fr. Gr. Penta-) + (Gr. & L.Pros.)
Defn: A verse of five feet.