n. One of the tribe of Judah; a member of the kingdom of Judah; a Jew. Kitto.

{ } a. [ L. Judaïcus, fr. Judaea, the country Judea: cf. F. Judaïque. See Jew. ] Of or pertaining to the Jews. “The natural or Judaical [ religion ].” South. [ 1913 Webster ]

adv. After the Jewish manner. Milton. [ 1913 Webster ]

prop. n. [ L. Judaïsmus: cf. F. judaïsme. ] 1. The religious doctrines and rites of the Jews as enjoined in the laws of Moses, and for many adherents, in the Talmud. J. S. Mill. [ 1913 Webster ]

2. Conformity to the Jewish rites and ceremonies; the practise of Judaism{ 1 }. [ 1913 Webster ]

3. The adherents of Judaism{ 1 } collectively; jewry. [ PJC ]

n. One who believes and practices Judaism. [ 1913 Webster ]

a. Of or pertaining to Judaism. [ 1913 Webster ]

n. The act of Judaizing; a conforming to the Jewish religion or ritual. [ R. ] [ 1913 Webster ]

v. i. [ imp. & p. p. Judaized p. pr. & vb. n. Judaizing ] [ Cf. F. judaïser. ] To conform to the doctrines, observances, or methods of the Jews; to inculcate or impose Judaism. [ 1913 Webster ]

They . . . prevailed on the Galatians to Judaize so far as to observe the rites of Moses in various instances.
They were Judaizing doctors, who taught the observation of the Mosaic law. Bp. Bull. [ 1913 Webster ]

v. t. To impose Jewish observances or rites upon; to convert to Judaism. [ 1913 Webster ]

The heretical Theodotion, the Judaized Symmachus. Milton. [ 1913 Webster ]

n. One who conforms to or inculcates Judaism; specifically, pl. (Ch. Hist.), those Jews who accepted Christianity but still adhered to the law of Moses and worshiped in the temple at Jerusalem. [ 1913 Webster ]

n. pl. See Raskolnik. [ Webster 1913 Suppl. ]

n. The disciple who betrayed Christ. Hence: A treacherous person; one who betrays under the semblance of friendship. -- a. Treacherous; betraying. [ 1913 Webster ]

Judas hole, a peephole or secret opening for spying. --
Judas kiss, (a) a deceitful and treacherous kiss. (b) an act appearing to be an act of friendship, which is in fact harmful to the recipient. --
Judas tree (Bot.), a leguminous tree of the genus Cercis, with pretty, rose-colored flowers in clusters along the branches. Judas is said to have hanged himself on a tree of this genus (Cercis Siliquastrum). Cercis Canadensis and Cercis occidentalis are the American species, and are called also redbud. [ 1913 Webster ]

a. Red; -- from a tradition that Judas Iscariot had red hair and beard. [ 1913 Webster ]

There's treachery in that Judas-colored beard. Dryden. [ 1913 Webster ]