/kok"euh tris/ , n.
1. a legendary monster with a deadly glance, supposedly hatched by a serpent from the egg of a cock, and commonly represented with the head, legs, and wings of a cock and the body and tail of a serpent. Cf. basilisk (def. 1).
2. a venomous serpent. Isa. 11:8.
[ 1350-1400; ME cocatrice cocatris caucatrices (pl.), L * calcatrix (see -TRIX), fem. of * calcator tracker, equiv. to calca ( re ) to tread, v. deriv. of calx heel + -tor -TOR; rendering Gk ichneúmon ICHNEUMON ]