n. In Greek myth, a female monster, said to have proposed a riddle to the Thebans who passed her as she sat on a rock by the roadside, and to have killed all who were not able to guess it.n. In Egyptian antiquity, a figure somewhat similar in composition to the Greek, having the body of a lion (never winged), and a male human head or an animal head.n. In heraldry, a creature with a lion's body and a woman's head, but not necessarily like any ancient original. It is assumed to be winged; when not winged, it should be blazoned “sans wings.”n. An enigmatic or sphinx-like person; one who talks puzzlingly, or is inscrutable in disposition or character; one whom it is hard to understand.n. In entomology:n. A hawk-moth; a member of the genus Sphinx or the family Sphingidæ. See cuts under hawk-moth, hog-caterpillar. Lepidoptera, and Philampelus.n. The typical genus of the family Sphingidæ.n. The Guinea baboon, Cynocephalus papio or Papio sphinx. Also called sphinx-bahoon.