Ordovician Definition

ôrdə-vĭshən
adjective
Designating or of the second geologic period of the Paleozoic Era, characterized by the development of abundant marine invertebrates and the first vertebrates.
Webster's New World
noun
The Ordovician Period.
American Heritage
Synonyms:
  • Ordovician period

Idioms, Phrasal Verbs Related to Ordovician

  • the Ordovician

Origin of Ordovician

  • From Latin Ordovicēs an ancient Celtic tribe of Wales from Celtic Ordovices weik-3 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

Ordovician Sentence Examples

  • Cambrian, Ordovician and Silurian beds have been recognized, the Upper Cambrian consisting of a limestone which is very rich in metalliferous ores (especially galena and calamine).

  • Contemporaneous volcanic rocks are associated with the Ordovician beds and with the Rhaetic sandstones in several places.

  • The higher steppes, as far as they are known, consist of Ordovician and Cambrian rocks, with an average elevation of 1500 to 3000 ft.

  • The breaking up of the old Archean foundation block began in Cambrian and Ordovician times.

  • Marine Ordovician rocks were deposited along the same general course.

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Words Starting With

OORORD

Words Ending With

NANIAN

Unscrambles

Ordovician

Words Starting With O and Ending With N

Starts With O & Ends With NStarts With OR & Ends With NStarts With O & Ends With AN

Word Length

10 Letter Words10 Letter Words Starting With O10 Letter Words Ending With N