siphuncle
noun
(in a nautilus) the connecting tube that passes from the end of the body through all of the septa to the innermost chamber.
siphunculated
-
a word derived from
siphuncle.
Example Sentences
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Classification of Tetrabranchiata.—Cephalopoda in which the mantle is entirely enclosed by a multilocular siphunculated shell, which may or may not be coiled.
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various
