Cobra and Hamadryad

Cobra noun - Venomous Asiatic and African elapid snakes that can expand the skin of the neck into a hood.

Hamadryad and cobra are semantically related. In some cases you can replace term "Hamadryad" with "Cobra", this nouns are similar.

Hamadryad noun - Large cobra of southeastern Asia and the East Indies; the largest venomous snake; sometimes placed in genus Naja.

Cobra and hamadryad are semantically related. You can use "Cobra" instead a noun "Hamadryad".