Definition of sea butterfly in English:

sea butterfly

Syllabification: sea but·ter·fly

noun

  • another term for pteropod.
    More example sentences
    • The opisthobranchs include the sea slugs and their relatives the sea hares, sea butterflies, canoe shells, and others.
    • These all feed on pteropods, or sea butterflies, one of the species most threatened by rising acidity.
    • The divers visit a small skerrig surrounded by a kelp forest with nudibranchs, comb jellyfish and sea butterflies.

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