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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Index of branches of science | 7/10 | https://en.wikipedia.org/wiki/Index_of_branches_of_science | reference | science, encyclopedia | 2026-05-05T03:28:12.104269+00:00 | kb-cron |
== O == Obstetrics – Medical specialty concerning pregnancy and childbirth Oceanography – Scientific study of the ocean Oceanology – Scientific study of the ocean Odontology – Scientific study of teeth Odonatology – Study of dragonflies and damselflies Oenology – Study of wine and winemaking Oikology – science of housekeeping Olfactology – study of the sense of smell Ombrology – study of rain Oncology – Branch of medicine dealing with, or specializing in, cancer Oneirology – Scientific study of dreams Onomasiology – Branch of linguistics concerned with how to express a given concept – study of nomenclature Onomastics – Study of proper names Ontology – Philosophical study of being – science of pure being; the nature of things Oology – Branch of ornithology studying bird eggs, nests and breeding behavior Ophiology, also known as ophidiology – Branch of herpetology that studies snakes Ophthalmology – Field of medicine treating eye disorders Optics – Branch of physics that studies light Optology – study of sight Optometry – Field of medicine treating eye disorders – science of examining the eyes Orbital mechanics – Field of classical mechanics concerned with the motion of spacecraft Orchidology – Scientific study of orchids Ornithology – Scientific study of birds Organology – Collection of tissues with similar functionsPages displaying short descriptions of redirect targets (biology) – study of form, structure, development, and functions of plant or animal organs Organology – Science of musical instruments and their classifications (musicology) – study of musical instruments in relation to history, culture, construction, acoustic properties and classification Orology, also known as Mountain research – Study of mountain environments Orthoepy – Correct pronunciation of a language Orthography – Set of conventions for written language Orthopterology – Study of grasshoppers and related insects Oryctology – mineralogy or paleontology Osmics – scientific study of smells Osmology – study of smells and olfactory processes Osphresiology – study of the sense of smell Osteology – Scientific study of bones Otology – Branch of medicine for the ear Otorhinolaryngology – Medical specialty of the head and neck