ˈsīˌfəŋkel noun
( -s )
Etymology: New Latin siphunculus, from Latin, little pipe, diminutive of sipho, siphon siphon — more at siphon
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