a combining form meaning “prickly; spiny,” used in the formation of compound words: echinulate.

What does Echino mean in zoology?

(chiefly zoology) Forming compound terms denoting something prickly or, specifically, indicating the sea urchin.

What does a derma mean?

The derma, also known as the dermis, is the dense inner layer of skin beneath the epidermis, which is the outermost (and thinner) part of the skin that we can see. ... It ultimately comes from the Greek dérma, meaning “skin.” As you may have already guessed, the Greek dérma is the source of the word derma itself.