[krahy-noid, krin-oid] 
| 1. | any echinoderm of the class Crinoidea, having a cup-shaped body to which are attached branched, radiating arms, comprising the sea lilies, feather stars, and various fossil forms. |
| cri·noid (krī'noid') n. 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. adj. Of or belonging to the Crinoidea. [From New Latin Crinoīdea, class name : Greek krinon, lily + Greek -oeidēs, -oid.] |
| crinoid (krī'noid') Pronunciation Key
Any of various marine echinoderms of the class Crinoidea. Crinoids have a cup-shaped body with five or more feathery arms and sometimes a stalk for attachment to a surface. The arms contain reproductive organs and sensory tube feet. Crinoids were common during the Paleozoic Era and are important index fossils. Sea lilies and feather stars are types of crinoids. |
crinoid
any marine invertebrate of the class Crinoidea (phylum Echinodermata) usually possessing a somewhat cup-shaped body and five or more feathery arms. The arms are edged with feathery projections (pinnules) that contain the reproductive organs and carry numerous tube feet with sensory functions. The tentacles also have open grooves, along which cilia (minute, hairlike projections) sweep food particles toward the mouth
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nɔɪd
s, equiv. to krín