WordReference Random House Unabridged Dictionary of American English © 2026
I′rish moss′, 
  1. Microbiologya purplish-brown, cartilaginous seaweed, Chondrus crispus, of the Atlantic coasts of Europe and North America. Also called carrageen, carragheen. 
  • 1835–45

'Irish moss' also found in these entries (note: many are not synonyms or translations):
carrageen

Forum discussions with the word(s) "Irish moss" in the title:


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