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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
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More Definitions for Irish moss
Irish moss
noun\ ˌī(ə)r-ish-ˈmȯs 
\
\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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Time Traveler for Irish moss
The first known use of Irish moss was in 1837
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