iron-mould

A small iron-mould has formed on the old metal bucket.

Definition

1. Noun:
   • A stain caused by rust: "iron-mould" refers to a discolored mark or spot, typically brownish or reddish, left on fabric or other materials by the action of rust (iron oxide). It is often difficult to remove.

Usage Examples

• Noun:
  • The old tablecloth was ruined by an unsightly iron-mould that appeared after it was left near a damp radiator. (A rust stain spoiled the cloth.)
  • She tried to scrub the iron-mould off her white shirt, but the mark remained. (A persistent rust stain on clothing.)

Advanced Usage

• "to have an iron-mould": to be marked by a rust stain.
  • The antique lace had an iron-mould that added to its aged appearance. (The lace bore a rust stain.)
• "to remove iron-mould": to attempt to eliminate a rust stain.
  • Specialized cleaning solutions are often needed to remove iron-mould from delicate fabrics. (To eliminate rust stains.)

Variants and Related Words

• Iron-moulded (adj): stained or marked with rust.
  • The iron-moulded handkerchief was discarded. (The handkerchief was stained with rust.)
• Iron-moulding (n): the process or result of forming rust stains.
  • The iron-moulding on the linen was caused by a rusty nail left in a drawer. (The formation of rust stains.)

Synonyms

• Rust stain: a discoloration caused by rust.
• Oxide mark: a stain resulting from metal oxidation.
• Ferruginous spot: a technical term for a rust-colored mark.

Related Idioms

• Not a single iron-mould: completely free of blemishes or imperfections (rare, figurative use).
  • Her reputation was without a single iron-mould of scandal. (Her reputation was spotless.)