Noun dipnoi has 1 sense
  1. Dipnoi, subclass Dipnoi - bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii
    --1 is a kind of class
    --1 is a member of Osteichthyes, class Osteichthyes
    --1 has members: lungfish; Ceratodontidae, family Ceratodontidae
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