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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.

Having five corners or angles. [R.]

Having five petals, or flower leaves.

Having five leaves or leaflets.

A measure or series consisting of five feet.

A noun having five cases.

A picture, or combination of pictures, consisting of a centerpiece and double folding doors or wings, as for an altarpiece.

A government in the hands of five persons; five joint rulers. P. Fletcher. "The pentarchy of the senses." A. Brewer.

A purchase with five pulleys. [R.]

Containing five seeds.

A composition consisting of five verses.