πλευρικός

ή, όν
A. of or for the ribs: τὰ π. τῶν βοῶν the sides, Sch. Ar. Eq. 361.
II. π. ἀριθμός number of units in the side of a square, opp. διαμετρικός: μονάς Theol.Ar. 3, Iamb. in Nic. p.11 P.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project