Definitions for "Crinoid"
A marine animal with a cup-shaped body with arms. It was usually attached to the sea bed by a stem made of many disks. Still surviving to this day, it is also known as the feather star.
primitive echinoderms having five or more feathery arms radiating from a central disk
n. Phylum Echinodermata, Class Crinoidea. A group of echinoderms known commonly as the feather stars and sea lilies.
Keywords:  belonging, class, relating
of or relating to or belonging to the class Crinoidea
Keywords:  one
One of the Crinoidea.