| CRYPTOZOOLOGIES | • CRYPTOZOOLOGY n. the study of and search for animals and esp. legendary animals. |
| EPIZOOTIOLOGY | • epizootiology n. The study of the dynamics and epidemiology of animal diseases. • EPIZOOTIOLOGY n. the sum of the factors controlling the occurrence of a disease or pathogen of animals. |
| GEOMORPHOLOGY | • geomorphology n. The study of landforms, their classification, origin, development, and history. • GEOMORPHOLOGY n. the study of the landscapes of the earth and their development. |
| HOMOEOMORPHY | • homœomorphy n. Obsolete form of homoeomorphy. • HOMOEOMORPHY n. the state of being homoeomorphy. |
| OESOPHAGOSCOPY | • oesophagoscopy n. Alternative form of esophagoscopy. • OESOPHAGOSCOPY n. examination of the oesophagus, also ESOPHAGOSCOPY. |
| OOPHORECTOMY | • oophorectomy n. (Medicine) Surgical removal of one or both ovaries. • oöphorectomy n. Alternative spelling of oophorectomy. • OOPHORECTOMY n. the operation of removing one or both of the ovaries, aka ovariotomy. |
| ORTHOPTEROLOGY | • orthopterology n. The scientific study of the Orthoptera. • ORTHOPTEROLOGY n. the study of cockroaches. |
| PALAEOZOOLOGY | • palaeozoology n. Alternative form of paleozoology. • PALAEOZOOLOGY n. the study of fossil animals, also PALEOZOOLOGY. |
| PALEOZOOLOGY | • paleozoology n. (Zoology) The branch of zoology dealing with fossils, and the creatures that were transformed into them. • PALEOZOOLOGY n. the study of fossil animals, also PALAEOZOOLOGY. |
| PERIODONTOLOGY | • periodontology n. (Dentistry) Periodontics. • PERIODONTOLOGY n. the branch of dentistry concerned with periodontal diseases. |
| PHOTOGEOLOGY | • photogeology n. The use of aerial photography to interpret geologic features. • PHOTOGEOLOGY n. a branch of geology concerned with the identification and study of geological features through the study of aerial or orbital photographs. |
| ZOOPHYSIOLOGIES | • ZOOPHYSIOLOGY n. the study of animal physiology. |
| ZOOPHYTOLOGIES | • ZOOPHYTOLOGY n. the study of zoophytes, plantlike animals. |
| ZOOPSYCHOLOGIES | • zoöpsychologies n. Plural of zoöpsychology. • ZOOPSYCHOLOGY n. the psychology of the lower animals. |