DIFFERENTIAE

DIFFERENTIA

differentia

(noun) distinguishing characteristics (especially in different species of a genus)

Source: WordNet® 3.1

Noun

differentiae

plural of differentia

Source: Wiktionary

DIFFERENTIA

Dif`fer*en"ti*a, n.; pl. Differentiæ. Etym: [L. See Difference.] (Logic)

Definition: The formal or distinguishing part of the essence of a species; the characteristic attribute of a species; specific difference.

Source: Webster’s Unabridged Dictionary 1913 Edition