branchia

Noun
  1. Respiratory organ of aquatic animals that breathe oxygen dissolved in water (synset 102513400)
    is a type of: respiratory organ - any organ involved in the process of respiration
    subtypes:
    • ctenidium - comb-like respiratory structure serving as the gill of certain mollusks
    • ceras - one of the often brightly colored and branching hornlike structures on the back of the nudibranch (and other related mollusks) that serve as gills
    • external gill - occurs in some mollusks and in tadpoles and other immature amphibians
    same as: gill

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