First recorded in 1175–1225; Middle English noun molde, moulde “pattern, model, mold,” from Anglo-French molde, from Old French molle, modle, moule, from Latin modulus “standard unit (of measurement)”; the verb is derivative of the noun; see also mode
a growth of minute fungi forming on vegetable or animal matter, commonly as a downy or furry coating, and associated with decay or dampness.
any of the fungi that produce such a growth.
verb (used with or without object)
to become or cause to become overgrown or covered with mold.
Also especially British, mould .
Origin of mold
First recorded in 1300–50; Middle English moulde, molde, apparently noun use of variant of earlier (i)mouled, moueld, past participle of moule(n), muhlen “to grow moldy, spoil, rot”; from Old Norse; compare Old Icelandic mygla, Swedish mögla, both meaning “to become moldy”
Definition for mold (3 of 3)
[ mohld ]
/ moʊld /
loose, friable earth, especially when rich in organic matter and favorable to the growth of plants.
First recorded before 900; Middle English molde, moulde, mulde “dirt, loose earth, soil; earth or soil of a grave,” Old English molde “dust, sand, earth, the earth”; cognate with Gothic mulda “dust,” Old Icelandic mold “earth, mold,” Old High German molta “dust”; akin to meal2, mill1
Any of various fungi that often form a fuzzy growth (called a mycelium) on the surface of organic matter. Some molds cause food to spoil, but others are beneficial, such as those used to make certain cheeses and those from which antibiotics like penicillin are developed. The molds do not form a distinct phylogenetic grouping but belong to various phyla including the ascomycetes and the zygomycetes. See also slime mold.