Liddell–Scott–Jones: δῠνᾰμο-δύνᾰμις

δῠνᾰμο-δύνᾰμις,εως,ἡ,

A. square multiplied by square, fourth power, Hero Metr. 1.17 ;fourth power of unknown quantity (x

4 ), Dioph. Def. 1 (pl.), al.: —henceδῠνᾰμο-δῠνᾰμοστόν,τό,the fraction

1 /x

4 , Id. Def. 3 , al.