Definition of lightproof

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  • lightproof is a valid Scrabble US word with a point value of 19
  • lightproof is a valid Scrabble UK word with a point value of 19
  • lightproof is a valid Words with friends word with a point value of 21

Definition of lightproof

  • not penetrable by light (adjective)

    Examples

    1. lightproof containers

    Synonyms

    1. light-tight

See definition of lightproof in Merriam Webster