On the periphery or boundary. / Beside the point. / Unimportant. / Auxiliary. / (neuroanatomy) Related to or located in the peripheral nervous system.

(computing) A peripheral device. / Peripheral vision.

the average interval between fertilization and birth of a mammal; ranges from 13 days for the opossum to 626 days for the Indian elephant

A colonnade surrounding a courtyard, temple, etc., or the yard enclosed by such columns. / A porch surrounded by columns.

(astronomy) Synonym of non-periodic

(astronomy) Having an orbital period of less than 200 years, especially said of comets

Liable to perish, especially naturally subject to quick decomposition or decay.

That which perishes or is short-lived. / (in the plural) food that does not keep for long.

(music) The musical period of time following the Renaissance, extending roughly between 1600-1750.

Expressed in more words than are necessary. / Indirect in naming an entity; circumlocutory. / (grammar) Characterized by periphrasis.