† pterorhineadj.OrnithologyObsoleterare of or relating to the former division Pterorhina of the family Alcidae, comprising auks in which the nostrils are feathered.Apparently only attested in dictionaries or glossaries.
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1890 Cent. Dict.Pterorhine, having feathered nostrils, as an auk; belonging to the Pterorhina.