[ad. L. coāgulānt-em, pr. pple. of coāgulāre to COAGULATE; (or a. F. coagulant) see -ANT1.] A coagulating agent, as rennet.
1770. Hewson, in Phil. Trans., LX. 379. The air is a strong coagulent of the blood.
1883. W. Mattieu Williams, in Gentl. Mag., July, 100. Many attempts to supersede the animal coagulant by using vegetable and mineral acids, alum, &c., have failed.