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Definition of entothorax
entothorax
/ˌɛntoʊˈθɔːræks/
en · to · tho · rax
Plural:entothoraces
•Adjective:entothoracic
entothorax Lexical Profile
CEFR
C2
Grade
13
Tier
3
Usage
Rare
• noun
1
The internal skeletal framework or apodemal structure within the thorax of an insect or other arthropod, serving primarily as an attachment point for muscles.
Example
"Under the microscope, the entomologist carefully examined the beetle's entothorax to understand the mechanics of its wing muscles."
Synonyms
View all synonyms for entothorax• Rhymes for entothorax
Word Origin & Etymology
Derived from the Greek prefix 'ento-' meaning 'within' or 'inner', combined with 'thorax', referring to the middle segment of an insect's body.
Cite this Entry
Wordmom. (2026). Definition of Entothorax. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/entothorax