Definition of medusa's head
1 : an edible hedgehog mushroom (Hydnum caput-medusae) with interwoven hymenial spines
2 : an African euphorbia (Euphorbia caput-medusae) with numerous drooping slender branches
3 : a weedy rye grass (Elymus caput-medusae) having long bristling awns
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Origin and Etymology of medusa's head
after Medusa, one of the three Gorgons, whose hair was said to have been turned into snakes
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