Definify.com
Webster 1913 Edition
Ordovician
Orˊdo-vi′cian
,Adj.
[From L.
Ordovices
, a Celtic people in Wales.] (Geol.)
Of or pertaining to a division of the Silurian formation, corresponding in general to the Lower Silurian of most authors, exclusive of the Cambrian.
– Noun.
The Ordovician formation.
Definition 2024
Ordovician
Ordovician
English
Adjective
Ordovician (comparative more Ordovician, superlative most Ordovician)
- (geology) Of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 488 to 443 million years ago.
Proper noun
Ordovician
- (geology) The Ordovician period.
Translations
Ordovician period
|
|
See also
- Appendix:Geologic timescale