411 REFERENCE · Wiktionary
Cassinian
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
From en Cassini an.
Adjective
Of or relating to the astronomer Giovanni Domenico Cassini.
Proper noun
1
en geology A sub-age from 473 to 471.8 million years ago, a subdivision of the Ordovician.
en eponyms