Trachelidan :: Trachelidan (n.) Any one of a tribe of beetles (Trachelides) which have the head supported on a pedicel. The oil beetles and the Cantharides are examples.
Trachelipoda :: Trachelipoda (n.pl.) An extensive artificial group of gastropods comprising all those which have a spiral shell and the foot attached to the base of the neck.
Trachelipodous :: Trachelipodous (a.) Having the foot united with the neck; of or pertainingto the Trachelipoda.