coagulates Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to change into a clot or a jelly as by heat by chemical action or by a ferment. Example Sentence Blood coagulates as the body attempts to heal its wound. Synonyms clot; congeal; gel; jell; jelly; set Antonyms liquefy; melt Hear It! Say It! Write It! coagulates Switch to cursive Start Share with your friends: