iron mould C2 Topic:Materials & Substances Also spelled iron mold, ironmold, and ironmould US /ˈaɪərn ˌmoʊld/ UK /ˈaɪən ˌməʊld/ See IPA manual Meanings 1 noun a yellow, brown, or reddish stain on cloth, paper, or a similar material caused by rusty iron or an iron-based ink Damp storage left spots of iron mould across the old linen and several pages of the ledger. Thesaurus Synonyms 1 noun · a yellow, brown, or reddish... iron stainrust stain More iron mold Word family Related forms rustdiscolorationiron-gall ink Etymology An English compound of iron + mould, documented since the early modern period for discoloration caused by iron, rust, or iron-based ink. Iron mold is the standard American spelling. Topics Materials & Substances External links Cambridge Dictionary Wiktionary Google Images # iron mould **Type:** Word **Level:** C2 **Part of speech:** noun **IPA (US):** /ˈaɪərn ˌmoʊld/ **IPA (UK):** /ˈaɪən ˌməʊld/ ## Meanings 1. a yellow, brown, or reddish stain on cloth, paper, or a similar material caused by rusty iron or an iron-based ink ## Examples - Damp storage left spots of iron mould across the old linen and several pages of the ledger. ## Synonyms - iron stain - rust stain - iron mold ## Related Forms - rust - discoloration - iron-gall ink ## Etymology An English compound of iron + mould, documented since the early modern period for discoloration caused by iron, rust, or iron-based ink. Iron mold is the standard American spelling. ## Topics - Materials & Substances markdown