Tergum

·noun The back of an Animal.

II. Tergum ·noun The dorsal piece of a somite of an articulate animal.

III. Tergum ·noun One of the dorsal plates of the operculum of a cirriped.

tergum
tergum, i (poet. and in post-Aug. prose also tergus, ŏris), n. (masc.: familiarem tergum, Plaut. As....

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
tergum
tergum ī, n TRAG-, the back : manibus ad tergum reiectis: tergo poenas pendere, T.: tergo ac capit...

An Elementary Latin Dictionary