Kevlar

//ˈkɛvlɑɹ// noun, slang

noun, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    A brand name for a para-aramid fiber Alternative letter-case form of kevlar. uncountable
  2. 2
    (Fabric, cordage, etc made of) aramid fiber, an exceptionally strong, light, man-made fibre used to strengthen cables and sheet materials, e.g. in stab-resistant vests. uncountable
  3. 3
    A piece of personal protective equipment made from Kevlar, such as a helmet or a vest. US, countable, slang

Etymology

Kevlar, a trademarked name

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.