episternum

noun

epi·​sternum
¦epə̇,
¦epē+
plural episterna
1
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
3

Word History

Etymology

New Latin, from epi- + sternum

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Dictionary Entries Near episternum

Cite this Entry

“Episternum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/episternum. Accessed 27 Dec. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!