Noun pennsylvanian has 2 senses
  1. Pennsylvanian, Pennsylvanian period, Upper Carboniferous, Upper Carboniferous period - from 310 million to 280 million years ago; warm climate; swampy land
    --1 is a kind of period, geological period
    --1 is a part of Carboniferous, Carboniferous period
  2. Pennsylvanian - a resident of Pennsylvania
    --2 is a kind of
    American
,
TOP