The disciple who betrayed christ. Hence: a treacherous person; one who betrays under the semblance of friendship.
(Science: botany) judas tree, a leguminous tree of the genus cercis, with pretty, rose-coloured flowers in clusters along the branches. Judas is said to have hanged himself on a tree of this genus (c. Siliquastrum). C. Canadensis and c. Occidentalis are the American species, and are