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WordReference Random House Unabridged Dictionary of American English © 2024Penn•syl•va•nian (pen′səl vān′yən, -vā′nē ən),USA pronunciation adj. - of or pertaining to the state of Pennsylvania.
- Geologynoting or pertaining to a period of the Paleozoic Era, occurring from about 310 to 280 million years ago and characterized by warm climates, swampy land areas, and the development of insects and reptiles: sometimes considered as an epoch of the Carboniferous Period. See table under geologic time.
n. - Place Namesa native or inhabitant of Pennsylvania.
- Geologythe Pennsylvanian Period or System.
- Pennsylvani(a) + -an 1675–85
Collins Concise English Dictionary © HarperCollins Publishers:: Pennsylvanian /ˌpɛnsɪlˈveɪnɪən/ adj - of the state of Pennsylvania
- (in North America) of, denoting, or formed in the upper of two divisions of the Carboniferous period, which lasted 30 million years, during which coal measures were formed
n - an inhabitant or native of the state of Pennsylvania
- the Pennsylvanian ⇒ the Pennsylvanian period or rock system, equivalent to the Upper Carboniferous of Europe
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