Definitions for crinoid
ˈkraɪ nɔɪd, ˈkrɪn ɔɪdcrinoid

Princeton's WordNetRate this definition:4.5 / 2 votes

1. crinoidadjective

   primitive echinoderms having five or more feathery arms radiating from a central disk

2. crinoidadjective

   of or relating to or belonging to the class Crinoidea

WiktionaryRate this definition:0.0 / 0 votes

1. crinoidnoun

   One of the numerous animals that make up the Crinoidea class; the feather star or "sea lily".

2. crinoidadjective

   Relating to or sharing the qualities and features of the Crinoidea class.

3. Etymology: κρίνον + -oeidēs

WikipediaRate this definition:0.0 / 0 votes

1. Crinoid

   Crinoids are marine animals that make up the class Crinoidea. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms are called feather stars or comatulids, which are members of the largest crinoid order, Comatulida. Crinoids are echinoderms in the phylum Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. They live in both shallow water and in depths as great as 9,000 meters (30,000 ft).Adult crinoids are characterised by having the mouth located on the upper surface. This is surrounded by feeding arms, and is linked to a U-shaped gut, with the anus being located on the oral disc near the mouth. Although the basic echinoderm pattern of fivefold symmetry can be recognised, in most crinoids the five arms are subdivided into ten or more. These have feathery pinnules and are spread wide to gather planktonic particles from the water. At some stage in their lives, most crinoids have a stem used to attach themselves to the substrate, but many live attached only as juveniles and become free-swimming as adults. There are only about 700 living species of crinoid, but the class was much more abundant and diverse in the past. Some thick limestone beds dating to the mid-Paleozoic to Jurassic eras are almost entirely made up of disarticulated crinoid fragments.

Webster DictionaryRate this definition:1.0 / 2 votes

1. Crinoidadjective

   crinoidal

2. Crinoidnoun

   one of the Crinoidea

3. Etymology: [See Crinoidea.]

WikidataRate this definition:5.0 / 1 vote

1. Crinoid

   Crinoids are marine animals that make up the class Crinoidea of the echinoderms. Crinoidea comes from the Greek word krinon, "a lily", and eidos, "form". They live both in shallow water and in depths as great as 6,000 metres. Sea lilies refer to the crinoids which, in their adult form, are attached to the sea bottom by a stalk. Feather stars or comatulids refer to the unstalked forms. Crinoids are characterised by a mouth on the top surface that is surrounded by feeding arms. They have a U-shaped gut, and their anus is located next to the mouth. Although the basic echinoderm pattern of fivefold symmetry can be recognised, most crinoids have many more than five arms. Crinoids usually have a stem used to attach themselves to a substrate, but many live attached only as juveniles and become free-swimming as adults. There are only about 600 extant crinoid species, but they were much more abundant and diverse in the past. Some thick limestone beds dating to the mid- to late-Paleozoic are almost entirely made up of disarticulated crinoid fragments.

How to pronounce crinoid?

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Numerology

1. Chaldean Numerology

   The numerical value of crinoid in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of crinoid in Pythagorean Numerology is: 9

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=crinoid
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Crinoid
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Crinoid
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/crinoid
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=crinoid