Definitions for: Tref

[adj] (Judaism) not conforming to dietary laws

Webster (1913) Definition: Tref, a. [Yiddish, fr. Heb. t[e^]r[=e]ph[=a]h an animal
torn by wild beasts.]
Ceremonially unclean, according to the Jewish law; -- opposed
to kosher.

Synonyms: impure, nonkosher, terefah, unclean