Definition of "eruca" []

• An insect in the larval state; a caterpillar; a larva. (noun)

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• "The bleak coastal Magdalena Plain's only conspicuous endemic plant is the weird creeping devil cactus (Stenocereus eruca), but inland the rocky slopes are rich and dense with trees, succulent shrubs, and cacti."
• "It's of the eruca genus, unlike lettuce whose genus is -"
• "Excuse me, but arugula (eruca sativa) is NOT lettuce!"