English Explanatory Dictionary

Siderian

English dictionary entry

Meanings

adj
  1. Of a geologic period within the Paleoproterozoic era from about 2500 to 2300 million years ago.
name
  1. The Siderian period.

Pronunciation

/saɪˈdɪəri.ən sɪ-/

Word forms

Siderian more Siderian most Siderian

Etymology

From Greek sideros.

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