epi·​sternum | \ ¦epə̇, ¦epē+ \
plural episterna

Definition of episternum

b : any of several other sternal elements of similar origin or position (such as the presternum of a mammal or the epiplastron of a turtle)
2 : a lateral division or piece of a somite of an arthropod specifically : the anterior sclerite of the pleuron of an insect — compare epimeron

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History and Etymology for episternum

New Latin, from epi- + sternum

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Cite this Entry

“Episternum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/episternum. Accessed 23 Sep. 2020.

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