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serrula

noun
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ser·​ru·​la | \ ˈser(y)ələ \
plural -s

Definition of serrula

: a toothed keel especially : one on the endite of most spiders that assists in the maceration of prey

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History and Etymology for serrula

New Latin, from Latin, small saw, diminutive of serra saw

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“Serrula.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/serrula. Accessed 22 Feb. 2020.

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