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A hydrocarbon of the paraffin series, (C15H32) found in petroleum, tar oil, etc., and obtained as a colorless liquid; -- so called from the fifteen carbon atoms in the molecule.

Of, pertaining to, or derived from, pentadecane, or designating an acid related to it.

Same as Quindecylic.

Having the stamens arranged in five clusters, those of each cluster having their filaments more or less united, as the flowers of the linden.

Divided or cleft into five parts.

A work in five different tongues.

having five angles, and, consequently, five sides; any figure having five angles. Regular pentagon, a pentagon in which the angles are all equal, and the sides all equal.

Having five corners or angles. Pentagonal dodecahedron. See Dodecahedron, and Pyritohedron.

In the form of a pentagon; with five angles. Sir T. Browne.

Pentagonal.

A pentacle or a pentalpha. "Like a wizard pentagram." Tennyson.

Pantographic. See Pantograph.

A Linnæan order of plants, having five styles or pistils.

Of or pertaining to plants of the order Pentagyna; having five styles.

Having five sides; as, a pentahedral figure.

Pentahedral. [R.]

A solid figure having five sides.

Pentahedral. Woodward.

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.

A five-pointed star, resembling five alphas joined at their bases; -- used as a symbol.