Her-cu'le-an, a.

(124), a. [Fr. Herculéen, Lat. Herculeus, from Hercules, the most famous of the Greek heroes, celebrated for his strength, and especially for his twelve labors.] 1. Very great, difficult, or dangerous; such as it would require the strength or courage of Hercules to encounter or accomplish; as, Herculean labor or task. 2. Having extraordinary strength and size; such as would be appropriate to Hercules; as, Herculean limbs.