siphuncle

American  

[sahy-fuhng-kuhl] / 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.

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Other Word Forms

• siphuncular
  adjective
• siphunculate
  adjective
• siphunculated
  adjective

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Etymology

Origin of siphuncle

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 -cule ¹ ( see carbuncle)

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Example Sentences

See Examples For:

siphuncle

The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a continuous and nearly central tube or siphuncle.

From The Gutenberg Webster's Unabridged Dictionary Section M, N, and O by Project Gutenberg

Shell coiled in one plane, aperture wide and simple, siphuncle central.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various

The siphuncle does not communicate with the coelomic cavity; it is a simple vascular process of the mantle, whose cavity consists of a venous sinus, and whose wall contains a ramification of the pallial artery.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various

Shell nautiloid, with simple sutures and ventral siphuncle.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various

Like that of Nautilus it is divided by septa and traversed by a siphuncle.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various

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