Home › Words › H › hexiologyhexiologyhexiology means the science dealing with the relations of living creatures to other organisms, and to their surrounding conditions generally.EtymologyFrom Ancient Greek ἕξις (héxis, “state or habit”) + -ology. Coined in 1894 by an English naturalist, St. George Jackson Mivart.nounThe science dealing with the relations of living creatures to other organisms, and to their surrounding conditions generally.e.g.“Dr. Mivart treats elaborately upon the anatomy, physiology, psychology, taxonomy, and hexicology of the cat […]” — 1881, Harper's Magazine:Definitions & examples from Wiktionary (CC BY-SA 3.0).