— siphuncular, siphunculate /suy fung"kyeuh lit/ , siphunculated /suy fung"kyeuh lay'tid/ , adj.
/suy"fung keuhl/ , n.
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. Entomol. an aphid cornicle.
[ 1895-1900; sip ( h ) unculus small tube through which water is forced, equiv. to sip ( h ) on-, s. of sip ( h ) o SIPHON + -culus -CULE 1 (see CARBUNCLE) ]