corm

noun2

1. •
   A short, vertical, swollen, underground stem of a plant (usually one of the monocots) that serves as a storage organ to enable the plant to survive winter or other adverse conditions such as drought.

   • The saffron crocus has to be planted by hand from corms. — 2002
2. •
   (informal) A cormorant.

   • "Great Corm on the barge—fifth bird from the left," shouted a fourth. — 1992