Defn: To become moldy; to be covered or filled, in whole or in part, with a mold.

MOLD; MOULD
Mold, Mould, n. Etym: [OE. molde, OF. mole, F. moule, fr. L. modulus.
See Model.] [For spelling, see 2d Mold, above.]

1. The matrix, or cavity, in which anything is shaped, and from which it takes its form; also, the body or mass containing the cavity; as, a sand mold; a jelly mold. Milton.

2. That on which, or in accordance with which, anything is modeled or formed; anything which serves to regulate the size, form, etc., as the pattern or templet used by a shipbuilder, carpenter, or mason. The glass of fashion and the mold of form. Shak.

3. Cast; form; shape; character. Crowned with an architrave of antique mold. Pope.

4. (Arch.)

Defn: A group of moldings; as, the arch mold of a porch or doorway; the pier mold of a Gothic pier, meaning the whole profile, section, or combination of parts.

5. (Anat.)

Defn: A fontanel.

6. (Paper Making)