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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.

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.

One of the Pentamera.

Belonging to the Pentamera.

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.

A verse of five feet.

A hypothetical hydrocarbon, C5H10, metameric with the amylenes, and the nucleus of a large number of derivatives; -- so named because regarded as composed of five methylene residues. Cf. Trimethylene, and Tetramethylene.

A Linnæan class of plants having five separate stamens.

Of or pertaining to the class Pentadria; having five stamens.

Any one of the three metameric hydrocarbons, C5H12, of the methane or paraffin series. They are colorless, volatile liquids, two of which occur in petroleum. So called because of the five carbon atoms in the molecule.

A pentagon. [R.] Sir T. Browne.