9-Letter Words Ending With OLOGY

Here's the list of all the 96 9-Letter Words Ending With OLOGY in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Words (with Definitions and Examples)
pathology
1. the branch of medical science that studies the causes and nature and effects of diseases
2. any deviation from a healthy or normal condition
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sociology
1. the study and classification of human societies
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astrology
1. a pseudoscience claiming divination by the positions of the planets and sun and moon
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mythology
1. myths collectively; the body of stories associated with a culture or institution or person
2. the study of myths
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radiology
1. the branch of medical science dealing with the medical use of X-rays or other penetrating radiation
2. (radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation
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anthology
1. a collection of selected literary passages
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neurology
1. the branch of medical science that deals with the nervous system
2. (neurology) the branch of medicine that deals with the nervous system and its disorders
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hydrology
1. the branch of geology that studies water on the earth and in the atmosphere: its distribution and uses and conservation
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cosmology
1. the metaphysical study of the origin and nature of the universe
2. the branch of astrophysics that studies the origin and evolution and structure of the universe
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histology
1. the branch of biology that studies the microscopic structure of animal or plant tissues
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audiology
1. the measurement of hearing
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metrology
1. the scientific study of measurement
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etymology
1. a history of a word
2. the study of the sources and development of words
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phonology
1. the study of the sound system of a given language and the analysis and classification of its phonemes
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ethnology
1. the branch of anthropology that deals with the division of humankind into races and with their origins and distribution and distinctive characteristics
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petrology
1. the branch of geology that studies rocks: their origin and formation and mineral composition and classification
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philology
1. the humanistic study of language and literature
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lithology
1. the branch of geology that studies rocks: their origin and formation and mineral composition and classification
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limnology
1. the scientific study of bodies of fresh water for their biological and physical and geological properties
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symbology
1. the study or the use of symbols and symbolism
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aetiology
1. the cause of a disease
2. the philosophical study of causation
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tribology
1. the branch of engineering that deals with the interaction of surfaces in relative motion (as in bearings or gears): their design and friction and wear and lubrication
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9-Letter Words Ending With OLOGY