proprium(redirected from Proper (liturgy))
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n. pl. pro·pri·a (-prē-ə)
In Aristotelian thought, a predicable property common to all members of a kind but not constituting part of the definition of that kind.
(Logic) logic obsolete Also called: property an attribute that is not essential to a species but is common and peculiar to it
[C16: Latin, neuter sing of proprius proper, own]