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mould2

Pronunciation: /məʊld/
(US mold)
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Definition of mould

noun

[mass noun]
  • a furry growth of minute fungi occurring typically in moist warm conditions, especially on food or other organic matter: mould may flourish unhindered [count noun]:moist food becomes covered with moulds
    • The fungi belong to the subdivision Deuteromycotina (or Ascomycotina)

Origin:

late Middle English: probably from obsolete mould, past participle of moul 'grow mouldy', of Scandinavian origin; compare with Old Norse mygla 'grow mouldy'

Spelling help

Remember that mould and the related word mouldy are spelled with a u after the o (the spellings mold and moldy are American).

mould in other Oxford dictionaries

Definition of mould in the US English dictionary
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