Definition of "crinoid" []

• Any of various echinoderms of the class Crinoidea, including the sea lilies and feather stars, that are characterized by a cup-shaped body, feathery radiating arms, and either a stalk or clawlike structure with which they are able to attach to a surface. (noun)
• Of or belonging to the Crinoidea. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The crinoid is a marine creature whose anus is located next to its mouth."
• "It's in realtime, meaning the little critter is walking along at a fairly brisk pace (for a crinoid, that is)."
• "For a detailed commentary that I did at the time in response to Hoagland's article on the alleged "crinoid," see this posting on the Yahoo Cydonia list:"