Irish moss

noun

Definition of Irish moss

1 : the dried and bleached parts of a red alga (especially Chondrus crispus) used as an agent for thickening or emulsifying or as a demulcent and as a source of carrageenan
2 : a red alga that is a source of Irish moss

called also carrageen

First Known Use of Irish moss

1837, in the meaning defined at sense 1

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Time Traveler for Irish moss

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The first known use of Irish moss was in 1837

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Cite this Entry

“Irish moss.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Irish%20moss. Accessed 18 Jun. 2021.

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More Definitions for Irish moss

Irish moss

noun
\ ˌī(ə)r-ish-ˈmȯs How to pronounce Irish moss (audio) \

Medical Definition of Irish moss

1 : the dried and bleached plants of a red alga (especially Chondrus crispus) that are used as an agent for thickening or emulsifying or as a demulcent (as in cookery or pharmacy)

called also chondrus

2 : a red alga (especially Chondrus crispus) that is a source of Irish moss

called also carrageen

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