rare. [f. SPATULATE a.] The fact or condition of being spatulate; a spatulate formation.

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1881.  Newton, in Encycl. Brit., XII. 359/1. The lateral feathers [of humming birds] may … suddenly enlarge into a terminal spatulation as in the … ‘Racquet-tails.’

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1895.  Ibis, July, 399. That in some motmots the spatulation of the tail-feathers may be effected by the bird itself.

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