As nouns the difference between tergum and pleuron
is that tergum is the upper or dorsal surface of an articulated animal such as an arthropod while pleuron is a lateral sclerite of a thoracic segment of an arthropod between the tergum and the sternum.
tergum
English
Noun
(terga)
(biology) The upper or dorsal surface of an articulated animal such as an arthropod
Derived terms
*tergal
----
pleuron
English
Noun
(pleura)
A lateral sclerite of a thoracic segment of an arthropod between the tergum and the sternum
Related terms
*pleural
*pleural lobe