corm
Concise Oxford English Dictionary © 2008 Oxford University Press:
corm/kɔːm/
▶noun a rounded underground storage organ present in plants such as crocuses and cyclamens, consisting of a swollen stem base covered with scale leaves.
– derivatives
cormlet noun.
cormlet noun.
– origin C19: from mod. L. cormus, from Gk kormos ‘trunk stripped of its boughs’.
'corm' also found in these Oxford entries:

