† circumˈagent,a.Obs.rare. [ad. L. circumagent-empr.pple. of circumagĕre: see circumact.] That moves (anything) round, that communicates circular motion. 1649Bulwer Pathomyot. ii. i. 68 The Instruments of this oblique motion [of the head]..are the two paire of circumagent Muscles.