The little tiny airsacs in lungs that give off CO2 and take up O2 are called alveoli. But the
sockets of teeth also alveoli. The progressively smaller air passages are reminiscent of
grape stems and fruits. The word to describe this is "racemose". That gets complicated
in organic chemistry where a "racemic" misture meany having both optical isomers. Presumably
becaue tartaric acid was one of the first optical isomers studied.