illuminant

From French.

illuminant (plural illuminants)

1. Something that illuminates.
   • 1946 July and August, “The Why and The Wherefore: Natural Gas at Heathfield”, in Railway Magazine, page 263:

     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.

illuminant (not comparable)

1. That illuminates.

• “illuminant”, in Collins English Dictionary.

illuminant

1. present participle of illuminer

• “illuminant”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

illūminant

1. third-person plural present active indicative of illūminō