Entry 2 senses Webster, 1913 Grumous · Gru·mous · IPA 01 a. Resembling or containing grume; thick; concreted; clotted; as, grumous blood. 1. Resembling or containing grume; thick; concreted; clotted; as, grumous blood. 2. See Grumose.(Bot.) See: Grumose