tentillum

noun
ten·​til·​lum | \ ten‧ˈtiləm \
plural tentilla\ -​lə \

Definition of tentillum

: a branch of a tentacle especially : one of the contractile branches that are rich in nematocysts and that occur on the tentacles of various siphonophores

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History and Etymology for tentillum

New Latin, from Latin tentare to feel + -illum, diminutive suffix

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Cite this Entry

“Tentillum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tentillum. Accessed 20 Oct. 2020.

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