organoponicsA system of urban agriculture using organic gardens, often low-level concrete walls filled with organic matter and soil, with lines of drip irrigation laid on the surface of the growing media.
organopotassiumDescribing any organic compound containing a carbon to potassium bond.
organoprotectionprotection from the action of organic compounds, especially from organic free radicals
organoprotectiveThat provides protection from the action of organic compounds, especially from organic free radicals
organorheniumDescribing any organic compound containing a carbon to rhenium bond.
organorhodiumDescribing any organic compound containing a carbon-to-rhodium bond.
organorubidiumDescribing any organic compound containing a carbon to rubidium bond.
organorutheniumDescribing any organic compound containing a carbon to ruthenium bond
organosamariumDescribing any organic compound containing a carbon to samarium bond.
organoscandiumDescribing any organic compound containing a carbon to scandium bond.
organoseleniumdescribing any of a series of derivatives of selenium that have at least one alkyl or aryl group, especially one containing at least one carbon-selenium bond
organosilaneAny organic derivative of a silane containing at least one carbon to silicon bond
organosilenea molecule containing a silicon atom doubly bonded to a carbon atom
organosilicaAny of a range of hybrid materials combining silica with various organic compounds
organosiliconDescribing any of a series of derivatives of silicon that have at least one alkyl or aryl group, especially one containing at least one carbon–silicon bond.
organosulfideAlso referred to as thioethers, a class of organic compounds RSR', where R and R' represent an alkyl group or other organic substituent. If R' is hydrogen, it is instead referred to as a thiol, or mercaptan.
organosulfurDescribing any of a series of derivatives of sulfur that have at least one alkyl or aryl group, especially one containing at least one carbon-sulfur bond.
organosulfuraneAny sulfurane having at least one organic group attached to the sulfur atom.
organotantalumDescribing any organic compound containing a carbon to tantalum bond.
organotechnetiumDescribing any organic compound containing a carbon-to-technetium bond.
organotelluraneAny tellurium analog of an organosulfide R-TeH or R-Te-R'
organotellurideAny telluride that has a carbon-to-tellurium bond.
organotelluriumDescribing any organic compound containing a carbon to tellurium bond.
organoterbiumDescribing any organic compound containing a carbon to terbium bond.
organothalliumDescribing any organic compound containing a carbon to thallium bond.
orgoneIn the psychoanalytic theory of Wilhelm Reich, a form of sexual energy or life force distributed throughout the universe and available for collection, storage, and further use.
OrgosoloA city and commune of the province of Nuoro, Sardinia, Italy.
OrgreaveA civil parish in the Metropolitan Borough of Rotherham, South Yorkshire, England, a part of Woodhouse Mill (OS grid ref SK4285)
orgueAny of a number of long, thick pieces of timber, pointed and shod with iron, and suspended, each by a separate rope, over a gateway, to be let down in case of attack.
orgyA secret rite or ceremony, typically involving riotous and dissolute behavior, including dancing, drunkenness and indiscriminate sexual activity, undertaken in honor of various pagan gods or goddesses (such as Attis, Bacchus, Ceres, Dionysus, Osiris, etc).
orichalceousPertaining to, or resembling, orichalch; having a colour or lustre like that of brass.
orichalcumA valuable yellow metal known to the Ancient Greeks and Romans; now sometimes interpreted as referring to a natural alloy of gold and copper, and sometimes treated as a mythical substance.