maerl

noun
\ ˈmer(ə)l, mäˈer-\
plural -s

Definition of maerl

: lime-producing red seaweeds principally of the genus Lithothamnion used especially in France to reduce acidity of the soil

History and Etymology for maerl

French maërl, maërle, from Breton merl, maërl marl, maerl, from Middle French marle marl

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