microfibres

noun
  1. extremely fine synthetic fibers, typically made from polyester or polyamide, used in textiles and cleaning products
  2. Usage: plural form; also spelled 'microfibers' in U.S. English; commonly used in fabric and material science contexts
  3. tiny plastic particles shed from synthetic textiles and accumulating in the environment and marine ecosystems
  4. Usage: environmental and scientific context; often discussed as a form of pollution

Examples