noun si·phon·anth \ˈsīfəˌnan(t)th\

Definition of siphonanth



  1. :  a feeding zooid of a compound siphonophore

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of siphonanth

back-formation from obsolete English siphonanthous of or belonging to the siphonophoran suborder Siphonanthae, from New Latin Siphonanthae (from siphon- + -anthae —feminine plural of -anthus) + English -ous

Seen and Heard

What made you want to look up siphonanth? Please tell us where you read or heard it (including the quote, if possible).


a trip made at another's expense

Get Word of the Day daily email!