bronchium


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bron·chi·um

 (brŏng′kē-əm)
n. pl. bron·chi·a (-kē-ə)
A bronchial tube that is smaller than a bronchus and larger than a bronchiole.

[New Latin, sing. of Late Latin bronchia, bronchial tubes, from Greek bronkhia, from bronkhos, windpipe.]

bronchium

(ˈbrɒŋkɪəm)
n
a medium-sized bronchial tube