nitrous oxide laughing gas | inhalation anesthetic used as an anesthetic in dentistry and surgery |
nitrogen narcosis | confused or stuporous state caused by high levels of dissolved nitrogen in the blood, deep-sea divers can suffer nitrogen narcosis from breathing air under high pressure |
nitrogen cycle | the circulation of nitrogen, nitrates from the soil are absorbed by plants which are eaten by animals that die and decay returning the nitrogen back to the soil |
nitrogen fixation | the assimilation of atmospheric nitrogen by soil bacteria and its release for plant use on the death of the bacteria |
nitrogen balance | the balance between the amount of nitrogen taken in (to the soil or the body) and the amount given off (lost or excreted) |
titanium dioxide titanium oxide titanic oxide titania | a white powder used as a pigment for its high covering power and durability |
barium monoxide barium oxide barium protoxide | an oxide of barium, a whitish toxic powder |
nitrogen N atomic number | a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas, constitutes percent of the atmosphere by volume, a constituent of all living tissues |
periclase magnesia magnesium oxide | a white solid mineral that occurs naturally as periclase, a source of magnesium |
heavy water deuterium oxide | water containing a substantial proportion of deuterium atoms, used in nuclear reactors |
nitrogen oxide | any of several oxides of nitrogen formed by the action of nitric acid on oxidizable materials, present in car exhausts |
nitrogen dioxide | a highly poisonous brown gas (NO) |
nitric oxide | a poisonous red-brown gas (NO) |
arsenic arsenic trioxide arsenous anhydride arsenous oxide white arsenic ratsbane | a white powdered poisonous trioxide of arsenic, used in manufacturing glass and as a pesticide (rat poison) and weed killer |
calcium oxide quicklime lime calx calcined lime fluxing lime unslaked lime burnt lime | a white crystalline oxide used in the production of calcium hydroxide |
copper oxide | an oxide of copper |
alumina aluminum oxide aluminium oxide | any of various forms of aluminum oxide occurring naturally as corundum |
aluminum hydroxide aluminium hydroxide hydrated aluminum oxide hydrated aluminium oxide | white crystalline compound that occurs naturally as the mineral gibbsite |
ferric oxide | a red oxide of iron |
hydroxide hydrated oxide | a compound of an oxide with water |
liquid nitrogen | nitrogen in a liquid state |
nitrogen mustard | a toxic compound resembling mustard gas in structure, important in cancer treatment |
oxide | any compound of oxygen with another element or a radical |
nitrogen trichloride Agene | a yellow pungent volatile oil (trade name Agene) formerly used for bleaching and aging flour |
silica silicon oxide silicon dioxide | a white or colorless vitreous insoluble solid (SiO), various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite |
sulfur oxide sulphur oxide | any of several oxides of sulphur |
zinc oxide flowers of zinc philosopher's wool philosophers' wool | oxide of zinc, a white powder used as a pigment or in cosmetics or glass or inks and in zinc ointment |
zirconium oxide zirconia zirconium dioxide | a white crystalline oxide, used in refractories and in insulation and abrasives and enamels and glazes |
nitrogen-fixing | contributing to the process of nitrogen fixation |
nitrogenous nitrogen-bearing | of or relating to or containing nitrogen |