Penn·syl·va·nian
| \ ˌpen(t)-səl-ˈvā-nyən
, -nē-ə-n \
, -nē-ə-n \
Definition of Pennsylvanian
1
: of or relating to Pennsylvania or its people
2
: of, relating to, or being the period of the Paleozoic era in North America between the Mississippian and Permian or the corresponding system of rocks — see Geologic Time Table
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“Pennsylvanian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Pennsylvanian. Accessed 20 Apr. 2021.
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The first known use of Pennsylvanian was in 1698
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