Lightwater

name, noun

name, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Alternative form of light water.; Water in its standard form. uncountable

    "I confess I am not fully aware of all the technicalities, but to what extent then is reprocessed fuel capable of being reused in lightwater reactors, compared to being reused in breeder reactors?"

  2. 2
    Alternative form of light water.; Fire-fighting foam. uncountable

    "An aqueous film-forming foam consisting of water and a special detergent, lightwater overspreads Class B fires -- those fed by petroleum -- and smothers them instantly."

Proper Noun
  1. 1
    A large village in Windlesham parish, Surrey Heath borough, Surrey, England (OS grid ref SU9262).

Example

More examples

"I confess I am not fully aware of all the technicalities, but to what extent then is reprocessed fuel capable of being reused in lightwater reactors, compared to being reused in breeder reactors?"

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