per centum
per centum[ noun ]
a proportion in relation to a whole (which is usually the amount per hundred)
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Per \Per\, prep. [L. Cf. {Far}, {For-}, {Pardon}, and cf. {Par},
prep.]
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}, by the hundred; in the hundred; --
used esp. of proportions of ingredients, rate or amount of
interest, and the like; commonly used in the shortened
form per cent.
{Per diem}, by the day. [For other phrases from the Latin,
see Quotations, Phrases, etc., from Foreign Languages, in
the Supplement.]