Definition of prepreg in English:

prepreg

noun

  • [mass noun] A fibrous material pre-impregnated with a particular synthetic resin, used in making reinforced plastics.

    • ‘Even construction is now mostly metal, although the airframe retains some prepreg carbon-fiber materials.’
    • ‘Unlike some of the prepreg materials ordinarily used in composite processes, what they're using is a material that's like a fabric at room temperature.’
    • ‘Unidirectional tape is more expensive than aluminum and more difficult to lay up than a woven prepreg.’
    • ‘The outer panel is based on a unidirectional prepreg tape.’

Origin

1950s: from pre- ‘before’ + ( im)preg(nated).

Pronunciation:

prepreg

/ˈpriːprɛɡ/