mulm

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See also: Mulm

English

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Etymology

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(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun

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mulm (uncountable)

  1. The sludge that collects at the bottom (or walls) of an aquarium, consisting of fish excrement, decaying plant matter, and other assorted detritus
    • 2013, C. W. Emmens, Keeping and Breeding Aquarium Fishes, page 115:
      The point is that the filter not only removes mulm from the tank but also ensures that this matter is very efficiently bathed in a constant flow of water, which will dissolve out anything that can be dissolved.

Norwegian Bokmål

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Noun

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mulm n (definite singular mulmet, indefinite plural mulm, definite plural mulma or mulmene)

  1. darkness, gloom

References

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