Irish moss

noun

1. a purplish-brown, cartilaginous seaweed, Chondrus crispus, of the Atlantic coasts of Europe and North America.

Irish moss

noun

1. See carrageen
   another name for carrageen

Word History and Origins

Origin of Irish moss¹

First recorded in 1835–45

Example Sentences

There was none, but our gaze fell upon a bottle marked "Irish Moss."

From Project Gutenberg