Blastoidea

plural noun

Blas·​toi·​dea
blaˈstȯidēə
: a class, formerly considered a division of Crinoidea, of extinct Paleozoic short-stemmed or stemless pelmatozoan echinoderms shaped somewhat like a flower bud and having five ambulacral areas with slender appendages along their margins and flattened tubes along their internal surface
blastoidean
(ˈ)⸗¦⸗dēən
adjective or noun

Word History

Etymology

New Latin, from blast- + -oidea

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Dictionary Entries Near Blastoidea

Cite this Entry

“Blastoidea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Blastoidea. Accessed 29 Nov. 2024.

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