Word Study
upper avon river |
upper balcony |
upper berth |
upper bound |
upper cannon |
upper carboniferous
| upper carboniferous period
| upper case
| upper class
| upper crust
| upper deck
upper carboniferous
WORDNET DICTIONARY
Noun upper carboniferous has 1 sense
- upper carboniferous(n = noun.time) pennsylvanian, pennsylvanian period, upper carboniferous period - from 310 million to 280 million years ago; warm climate; swampy land; Array is a part of carboniferous, carboniferous period
is a kind of geological period, period
For further exploring for "upper carboniferous" in Webster Dictionary Online