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spire2

Pronunciation: /spʌɪə/
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Definition of spire

noun

Zoology
  • the upper tapering part of the spiral shell of a gastropod mollusc, comprising all but the whorl containing the body.

Origin:

mid 16th century (in the general sense 'a spiral'): from French, or via Latin from Greek speira 'a coil'

spire in other Oxford dictionaries

Definition of spire in the US English dictionary