Illuminant

adj, noun

Definitions

Adjective
  1. 1
    That illuminates. not-comparable
Noun
  1. 1
    Something that illuminates.

    "For a good many years, beginning in London, Brighton & South Coast days, the station at Heathfield, between Tunbridge Wells and Eastbourne, was lighted by natural gas. The use of this illuminant was discontinued about 1934."

  2. 2
    something that can serve as a source of light wordnet

Etymology

Etymology 1

From French.

Etymology 2

From French.

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