metathorax

noun

meta·​tho·​rax ˌme-tə-ˈthȯr-ˌaks 

: the posterior segment of the thorax of an insect see insect illustration

metathoracic

ˌme-tə-thə-ˈra-sik 

adjective

Word History

Etymology

New Latin

First Known Use

1817, in the meaning defined above

Kids Definition

metathorax

noun

meta·​tho·​rax ˌmet-ə-ˈthō(ə)r-ˌaks 

-ˈthȯ(ə)r-

: the hindmost of the three segments of the thorax of an insect that is next to the abdomen