siphuncle

noun

si·​phun·​cle

ˈsīˌfəŋkel

plural -s

1

a

: a membranous tubular extension of the mantle which runs through the partitions of the chambers to the apex of a shelled cephalopod : siphon

b

: the shelly structures that are usually funnel-shaped or tubular processes of the septa and that ensheathe and support the cephalopod siphuncle

2

: a cornicle of an aphid

Word History

Etymology

New Latin siphunculus, from Latin, little pipe, diminutive of sipho, siphon siphon

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