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Meaning of spirifer | Babel Free

Noun CEFR B2

Definitions

Any of numerous species of fossil brachiopods of the genera †Spirifer and †Delthyris and allied genera in order †Spiriferida, in which the long calcareous supports of the arms form a large spiral, or helix, on each side.

Equivalents

Français spirifer

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

spiriferid spiriferinid spiriferoid spirillinid spirillosis spirilloxanthin

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