The Collaborative International Dictionary of English v.0.48:
bronchiolar \bron*chi*o"lar\ (br[o^][ng]*k[=e]*[=o]"l[aum]r), adj. of or pertaining to a bronchiole. [WordNet 1.5]WordNet (r) 3.0 (2006):
bronchiolar adj 1: of or relating to or involving bronchioles