Siphuncle meaning
A tubelike structure in the body of a shelled cephalopod, such as a nautilus, extending through each chamber of the shell.
noun
A strand of tissue passing longitudinally through the shell of a cephalopod mollusk, used primarily in emptying water from new chambers as the shell grows.
noun
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Origin of siphuncle
- Latin sīphunculus diminutive of sīphō sīphōn- siphon siphon
From American Heritage Dictionary of the English Language, 5th Edition