\Tu*bic"o*l[ae]\, n. pl. [L. tubus a tube + colere to
inhabit.] (Zo["o]l.)
A division of annelids including those which construct, and
habitually live in, tubes. The head or anterior segments
usually bear gills and cirri. Called also {Sedentaria}, and
{Capitibranchiata}. See {Serpula}, and {Sabella}.