1. [syn: per annum, p.a., per year, each year, annually]
The Collaborative International Dictionary of English v.0.48:
Per \Per\, prep. [L. Cf. Far, For-, Pardon, and cf. Par,
Through; by means of; through the agency of; by; for; for
each; as, per annum; per capita, by heads, or according to
individuals; per curiam, by the court; per se, by itself, of
itself. Per is also sometimes used with English words.
Per annum, by the year; in each successive year; annually.
per cent, Per centum, percent, by the hundred; in the
hundred; a proportion multiplied by one hundred; -- used
esp. of proportions of ingredients, rate or amount of
interest, and the like; most commonly used in the
shortened form per cent; as, 5 is ten per cent of 50. It
is commonly symbolized with the per cent sign, "%".
Per diem, by the day. [For other phrases from the Latin,
see Quotations, Phrases, etc., from Foreign Languages, in
WordNet (r) 3.0 (2006):
adv 1: by the year; every year (usually with reference to a sum
of money paid or received); "he earned $100,000 per
annum"; "we issue six volumes per annum" [syn: per
annum, p.a., per year, each year, annually]