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parabronchus
parabronchus n.
Brit. 
/ˌparəˈbrɒŋkəs/
, /ˌparəˈbrɒŋkəs/U.S. /ˌpɛrəˈbrɑŋkəs/
Ornithology any of the smallest branches of the bronchi of a bird's lung./ˌpɛrəˈbrɑŋkəs/ΘΚΠ
the world > animals > birds > parts of or bird defined by > [noun] > parts of lung
pneumatocyst1859
tracheobronchial1896
parabronchus1916
1916 Amer. Jrnl. Anat. 19 451 Its most significant feature is the description of recurrent bronchi..growing from the air-sacs into the lungs and anastomosing with the parabronchi.
1954 P. D. Sturkie Avian Physiol. vi. 90 The parabronchi are continuous, forming a network of air capillaries.
1971 Sci. Amer. Dec. 75/1 The bird lung is perforated by the finest branches of the bronchial system, which are called parabronchi.
1988 Anat. Rec. 222 145 The crosscurrent system enhances the duration of interaction between the parabronchial air and the blood, the oxygen being extracted from a parabronchus along its whole length.
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