Noun thaliacea has 1 sense
  1. Thaliacea, class Thaliacea - small class of free-swimming tunicates; sometimes classified as an order
    --1 is a kind of class
    --1 is a member of
     Urochordata, subphylum Urochordata, Urochorda, subphylum Urochorda, Tunicata, subphylum Tunicata
    --1 has members: Salpidae, family Salpidae; Doliolidae, family Doliolidae
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