1 example sentence using crinoid.
Crinoid used in a sentence
Crinoid in a sentence as a noun
"The specimen in the Mini Museum comes from the center of a crinoid stem, also known as a "columnal".
Crinoid definitions
noun
primitive echinoderms having five or more feathery arms radiating from a central disk
adjective
of or relating to or belonging to the class Crinoidea