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.

Definition of sea butterfly in:

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Word of the day oleaginous
Pronunciation: ˌōlēˈajənəs
adjective
rich in, covered with, or producing oil; oily