| 单词 | Pennsylvanian |
| 释义 | Pennsylvanian /pen'seuhl vayn"yeuhn, -vay"nee euhn/, adj. 1. of or pertaining to the state of Pennsylvania. 2. Geol. noting 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. 3. a native or inhabitant of Pennsylvania. 4. Geol. the Pennsylvanian Period or System. [1675-85; PENNSYLVANI(A) + -AN] |
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