Micraster

noun
Mi·​cras·​ter | \ mīˈkrastə(r) \

Definition of Micraster

: a genus of extinct heart urchins (order Exocycloida) with ambulacral furrows arranged in a small star on the dorsal surface

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History and Etymology for Micraster

New Latin, from micr- + -aster

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Dictionary Entries Near Micraster

micraner

Micraster

micrencephalon

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Cite this Entry

“Micraster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Micraster. Accessed 25 Oct. 2021.

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