Pen`ta*he"dron (?), n. [Penta- + Gr. "e`dra seat, base.] A solid figure
having five sides.
Pen`ta*he"drous (?), a. Pentahedral. Woodward.
Pen"tail` (?), n. (Zoˆl.) A peculiar insectivore (Ptilocercus Lowii) of
Borneo; -- so called from its very long, quill-shaped tail, which is
scaly at the base and plumose at the tip.
||Pen*tal"pha (?), n. [NL., fr. Gr. &?;: cf. F. pentalpha. See Penta-,
||and Alpha.] A five-pointed star, resembling five alphas joined at
||their bases; -- used as a symbol.
||Pen*tam"e*ra (?), n. pl. [NL. See Pentamerous.] (Zoˆl.) An extensive
||division of Coleoptera, including those that normally have
||five-jointed tarsi. It embraces about half of all the known species
||of the Coleoptera.
Pen*tam"er*an (?), n. (Zoˆl.) One of the Pentamera.
Pen*tam"er*ous (?), a. [Penta- + Gr. &?; part.] 1. (Biol.) 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.