Holmes light


ˈhōmz- also -ōlmz-
variants or Holmes signal
: a signaling device that consisting of a case containing impure calcium phosphide and a float and that when thrown into water generates hydrogen phosphides that take fire spontaneously

Word History


probably from the name Holmes

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near Holmes light

Cite this Entry

“Holmes light.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Holmes%20light. Accessed 1 Dec. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!