| HYETOLOGY | • hyetology n. (Rare, archaic) The scientific study of precipitation. • HYETOLOGY n. the science of rainfall. |
| OXYHYDROGEN | • oxyhydrogen adj. Of, or using a mixture of, hydrogen and oxygen. • oxyhydrogen n. (Chemistry) A potentially explosive mixture of hydrogen and oxygen. • oxy-hydrogen n. Alternative spelling of oxyhydrogen. |
| EPIPHYTOLOGY | • epiphytology n. Study of epiphytes and their ecology. • EPIPHYTOLOGY n. the study of epiphytes. |
| GEOHYDROLOGY | • geohydrology n. (Geology) hydrogeology. • GEOHYDROLOGY n. a science that deals with the character, source, and mode of occurrence of underground water. |
| HYDROGEOLOGY | • hydrogeology n. The geology of groundwater, especially concerning the physical, biological and chemical properties of… • HYDROGEOLOGY n. the study of the geological action of water. |
| OXYHYDROGENS | • OXYHYDROGEN n. a mixture of hydrogen and oxygen used to provide an intense flame for welding. |
| ECOPHYSIOLOGY | • ecophysiology n. (Biology) The study of the relationships between, and adaptation of, the physiology of an organism and… • ECOPHYSIOLOGY n. the science of the interrelationships between the physiology of organisms and their environment. |
| CYTOTECHNOLOGY | • cytotechnology n. The microscopic interpretation of cells to detect cancer and other abnormalities. • CYTOTECHNOLOGY n. the identification of cells and cellular abnormalities in cancer. |
| HETEROZYGOSITY | • heterozygosity n. The condition of being heterozygous. • HETEROZYGOSITY n. the state of being heterozygous. |
| HYDROGENOLYSES | • hydrogenolyses n. Plural of hydrogenolysis. • HYDROGENOLYSIS n. a chemical reaction in which a compound is decomposed by hydrogen. |
| HYDROGENOLYSIS | • hydrogenolysis n. (Chemistry) the cleavage of a molecule, especially that of a carbon-carbon bond, with the addition of… • HYDROGENOLYSIS n. a chemical reaction in which a compound is decomposed by hydrogen. |
| METAPSYCHOLOGY | • metapsychology n. (Psychology) The philosophical study of psychology and of the mind. • metapsychology n. (Psychology) A set of principles governing Freudian psychology. • metapsychology n. (Philosophy) The study of how human experience forms, filters perception and shapes identity. |
| NEUROHYPNOLOGY | • neurohypnology n. (Obsolete) hypnotism. • NEUROHYPNOLOGY n. an old name for the science of hypnotism, also NEURYPNOLOGY. |
| PHYTOGEOGRAPHY | • phytogeography n. (Biology) The science that studies the geographical distribution of plants; geobotany. • PHYTOGEOGRAPHY n. the geography of plant distribution. |
| NEUROPHYSIOLOGY | • neurophysiology n. (Physiology, neuroscience) The branch of physiology that deals with the nervous system. • NEUROPHYSIOLOGY n. the physiology of the nervous system. |
| NEUROPSYCHOLOGY | • neuropsychology n. A branch of neurology and of clinical psychology that investigates the physiological basis of psychological processes. • neuropsychology n. The facts uncovered thereby, or the body of knowledge thus produced. • NEUROPSYCHOLOGY n. the study of the relation between brain and behaviour. |
| PALAEOPHYTOLOGY | • palaeophytology n. Alternative form of paleophytology. • PALAEOPHYTOLOGY n. the study of fossil plants, palaeobotany. |
| ZYGOPHYLLACEOUS | • zygophyllaceous adj. (Botany) Of or relating to the family Zygophyllaceae of bean-capers, caltrops, and related plants. • ZYGOPHYLLACEOUS adj. belonging to the Zygophyllaceae, the bean caper family. |