You searched for: “siphuncle”
siphonet, siphuncle
1. The honey dew tube of an aphid.
2. One of the two dorsal tubular organs on the back part of the abdomen of aphids.

They give exit to the honeydew.

This entry is located in the following unit: siphon-, siphono- + (page 2)
siphuncle
A small cord of tissue that secretes gas into the buoyancy chambers of the external shell of a nautilus or similar mollusk.
This entry is located in the following unit: -uncle + (page 1)