combining form
Usage: usually capitalized
Etymology: International Scientific Vocabulary, from Permian (I)
: Permian and — especially in the names of geologic strata
Permo carboniferous
Permo pennsylvanian
Permo triassic
combining form
Usage: usually capitalized
Etymology: International Scientific Vocabulary, from Permian (I)
: Permian and — especially in the names of geologic strata
Permo carboniferous
Permo pennsylvanian
Permo triassic
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012