tergum

The dorsal portion of a body segment of an arthropod.

The back, dorsum, or notum, especially of an arthropod.

The tergal or dorsal sclerite of one of the rings or somites of an arthropod or articulate animal; a tergite.

One of the two upper or dorsal plates of the shell in cirripeds. See cut under Balanus.

The back of an animal.

The dorsal piece of a somite of an articulate animal.

One of the dorsal plates of the operculum of a cirriped.

The upper or dorsal surface of an articulated animal such as an arthropod