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siphuncle

[sahy-fuhng-kuh l] /ˈsaɪ fʌŋ kəl/
noun
1.
(in a nautilus) the connecting tube that passes from the end of the body through all of the septa to the innermost chamber.
2.
Entomology. an aphid cornicle.
Origin
1895-1900
1895-1900; < Latin sīp(h)unculus small tube through which water is forced, equivalent to sīp(h)ōn-, stem of sīp(h)ō siphon + -culus -cule1 (see carbuncle)
Related forms
siphuncular, siphunculate
[sahy-fuhng-kyuh-lit] /saɪˈfʌŋ kyə lɪt/ (Show IPA),
siphunculated
[sahy-fuhng-kyuh-ley-tid] /saɪˈfʌŋ kyəˌleɪ tɪd/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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