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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.

[Medieval Latin, from neuter of Latin proprius, proper (to) (translation of Greek idion); see per in Indo-European roots.]


(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]
References in classic literature ?
Mr Burd points out that this passage is imitated directly from Cicero's "De Officiis": "Nam cum sint duo genera decertandi, unum per disceptationem, alterum per vim; cumque illud proprium sit hominis, hoc beluarum; confugiendum est ad posterius, si uti non licet superiore.
Their topics include the over-painted patron: some considerations about dating Bosch's Last Judgement Triptych in Vienna, Oration and Proprium Angelum: the guardian angel in the Rothschild Hours, preserving destruction: Albrecht Altdorfer's etchings of the Regensburg Synagogue as material performances of the past and future, disgust and desire: response to Rembrandt's nudes, and Pieter Codde and the industry of copies in 17th-century Dutch painting.
and its affiliates have sold UK leased and tenanted pub company Admiral Taverns to a joint venture that includes C and C Group plc, Proprium Capital Partners, and Admiral Taverns management, the firm said.