maerl

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maerl (countable and uncountable, plural maerls) (usually as a collective noun)

1. Two or three species of calcareous algae in the Corallinaceae family, that grow on the seabed.
2. A fertilizer derived from this algae.

• Maler, Lamer, realm, meral, Lemar, lamer, Armel, Almer, maler, marle, Lerma