Definition of chimaeras:
(n) :
A cartilaginous marine fish in the subclass Holocephali and especially the order Chimaeriformes, with a blunt snout, long tail, and a spine before the first dorsal fin
(n) :
(dated) Alternative form of Chimera. [(Greek mythology) A supposed fire-breathing monster in Lycia with the head of a lion, body of a goat, and tail of a dragon or snake, killed by the hero Bellerophon.]
(n) :
Alternative spelling of chimera. [(mythology, art) Any fantastic creature combining parts from different animals.]