ORDOVICIAN


Meaning of ORDOVICIAN in English

[ ˌɔ:də'vɪʃɪən ]

■ adjective Geology relating to or denoting the second period of the Palaeozoic era (between the Cambrian and Silurian periods, about 510 to 439 million years ago), a time when the first vertebrates appeared.

Origin

C19: from Ordovices , the L. name of an ancient British tribe, + -ian .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.