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Definitions from WordNet

Definitions from the Web

Ordovician

Definition:

Ordovician refers to a geologic period occurring between around 485 and 443 million years ago, known for the proliferation of marine life such as corals, trilobites, and brachiopods.

Noun:

In the context of geology, Ordovician is used as a noun to represent the second period of the Paleozoic Era.

Example sentence: The fossilized trilobite discovered in the shale bed is believed to be from the Ordovician period.

Adjective:

When used as an adjective, Ordovician describes something relating to or characteristic of the Ordovician period.

Example sentence: The paleontologist conducted extensive research on the Ordovician fossils found in the limestone formations.

Proper noun:

In the case of a proper noun, Ordovician can refer to a person, place, or thing associated with the Ordovician period.

Example sentence: The National Museum of Natural History has an impressive display of Ordovician invertebrate fossils.

Related term:

Related term would be Silurian, the subsequent geologic period after the Ordovician.

Example sentence: The discovery of a unique species bridging the gap between the Ordovician and Silurian periods fascinated the scientific community.