photogen

English

Alternative forms

Etymology

From photo- +‎ -gen.

Noun

photogen (plural photogens)

  1. (chemistry) A light hydrocarbon oil resembling kerosene, used as a lubricant, illuminant, etc.
  2. (biology) A microorganism that produces phosphorescence.
  3. This term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “photogen”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)

German

Adjective

photogen (strong nominative masculine singular photogener, not comparable)

  1. alternative spelling of fotogen

Usage notes

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