(intransitive) To be shaped in or as if in a mold.
Noun
A natural substance in the form of a woolly or furry growth of tiny fungi that appears when organic material lies for a long time exposed to (usually warm and moist) air.
Verb
(transitive) To cause to become moldy; to cause mold to grow upon.
(intransitive) To become moldy; to be covered or filled, in whole or in part, with a mold.