liquid nitrogen | (n) nitrogen in a liquid state |
nitrogen | (n) a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues, Syn. N, atomic number 7 |
nitrogenase | (n) an enzyme of nitrogen-fixing microorganisms that catalyzes the conversion of nitrogen to ammonia |
nitrogen balance | (n) the balance between the amount of nitrogen taken in (to the soil or the body) and the amount given off (lost or excreted) |
nitrogen cycle | (n) 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 dioxide | (n) a highly poisonous brown gas (NO2) |
nitrogen fixation | (n) the assimilation of atmospheric nitrogen by soil bacteria and its release for plant use on the death of the bacteria |
nitrogen-fixing | (adj) contributing to the process of nitrogen fixation |
nitrogen mustard | (n) a toxic compound resembling mustard gas in structure; important in cancer treatment |
nitrogen narcosis | (n) confused or stuporous state caused by high levels of dissolved nitrogen in the blood |
nitrogenous | (adj) of or relating to or containing nitrogen, Syn. nitrogen-bearing |
nitrogen oxide | (n) any of several oxides of nitrogen formed by the action of nitric acid on oxidizable materials; present in car exhausts |
nitrogen trichloride | (n) a yellow pungent volatile oil (trade name Agene) formerly used for bleaching and aging flour, Syn. Agene |
nitrify | (v) treat with nitrogen or a nitrogen compound, Syn. nitrogenize, nitrogenise |
Nitrogen | n. [ L. nitrum natron + -gen: cf. F. nitrogène. See Niter. ] (Chem.) A colorless nonmetallic element of atomic number 7, tasteless and odorless, comprising four fifths of the atmosphere by volume in the form of molecular nitrogen (N2). It is chemically very inert in the free state, and as such is incapable of supporting life (hence the name azote still used by French chemists); but it forms many important compounds, such as ammonia, nitric acid, the cyanides, etc, and is a constituent of all organized living tissues, animal or vegetable. Symbol N. Atomic weight 14.007. It was formerly regarded as a permanent noncondensible gas, but was liquefied in 1877 by Cailletet of Paris, and Pictet of Geneva, and boils at -195.8 ° C at atmospheric pressure. Liquid nitrogen is used as a refrigerant to store delicate materials, such as bacteria, cells, and other biological materials. [ 1913 Webster +PJC ] |
Nitrogenize | v. t. [ imp. & p. p. Nitrogenized p. pr. & vb. n. Nitrogenizing. ] (Chem.) To combine, or impregnate, with nitrogen or its compounds. [ 1913 Webster ] |
Nitrogenous | a. (Chem.) Of, pertaining to, or resembling, nitrogen; as, a nitrogenous principle; nitrogenous compounds. [ 1913 Webster ] Nitrogenous foods. See 2d Note under Food, n., 1. [ 1913 Webster ]
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Nonnitrogenous | a. Devoid of nitrogen; as, a nonnitrogenous principle; a nonnitrogenous food. See the Note under Food, n., 1. [ 1913 Webster ] |
淡 | [dàn, ㄉㄢˋ, 淡] insipid; diluted; weak; light in color; tasteless; fresh; indifferent; nitrogen #2,167 [Add to Longdo] |
氮 | [dàn, ㄉㄢˋ, 氮] nitrogen N, atomic number 7 #8,091 [Add to Longdo] |
非金属 | [fēi jīn shǔ, ㄈㄟ ㄐㄧㄣ ㄕㄨˇ, 非 金 属 / 非 金 屬] nonmetal, includes: carbon C 碳, nitrogen N 氮, oxygen O 氧, phosphorus P 磷, sulfur S 硫, selenium S 硒 (and others in some classifications) #38,775 [Add to Longdo] |
氮气 | [dàn qì, ㄉㄢˋ ㄑㄧˋ, 氮 气 / 氮 氣] nitrogen #43,711 [Add to Longdo] |
二氧化氮 | [èr yǎng huà dàn, ㄦˋ ㄧㄤˇ ㄏㄨㄚˋ ㄉㄢˋ, 二 氧 化 氮] nitrogen dioxide #70,753 [Add to Longdo] |
氮氧化物 | [dàn yǎng huà wù, ㄉㄢˋ ㄧㄤˇ ㄏㄨㄚˋ ㄨˋ, 氮 氧 化 物] nitrogen oxide [Add to Longdo] |
氮芥气 | [dàn jiè qì, ㄉㄢˋ ㄐㄧㄝˋ ㄑㄧˋ, 氮 芥 气 / 氮 芥 氣] nitrogen mustard [Add to Longdo] |
液氮 | [yè dàn, ㄧㄝˋ ㄉㄢˋ, 液 氮] liquid nitrogen [Add to Longdo] |
非金属元素 | [fēi jīn shǔ yuán sù, ㄈㄟ ㄐㄧㄣ ㄕㄨˇ ㄩㄢˊ ㄙㄨˋ, 非 金 属 元 素 / 非 金 屬 元 素] nonmetal, includes: carbon C 碳, nitrogen N 氮, oxygen O 氧, phosphorus P 磷, sulfur S 硫, selenium S 硒 (and others in some classifications) [Add to Longdo] |
窒素 | [ちっそ, chisso] (n, adj-no) nitrogen (N); (P) #11,040 [Add to Longdo] |
NOx | [エヌオーエックス;ノックス, enuo-ekkusu ; nokkusu] (n) nitrogen oxide; NOx [Add to Longdo] |
トライミックス | [toraimikkusu] (n) trimix; diver's gas mix of helium, oxygen, and nitrogen [Add to Longdo] |
ナイトロジェンマスタード | [naitorojienmasuta-do] (n) nitrogen mustard (chemical compound related to mustard gas, used as a chemical weapon or an anticarcinogen) [Add to Longdo] |
ナイトロックス | [naitorokkusu] (n) nitrox; any nitrogen-oxygen gas mix [Add to Longdo] |
一酸化二窒素 | [いっさんかにちっそ, issankanichisso] (n) dinitrogen oxide [Add to Longdo] |
液体窒素 | [えきたいちっそ, ekitaichisso] (n) liquid nitrogen [Add to Longdo] |
酸化窒素 | [さんかちっそ, sankachisso] (n) nitrogen oxide (esp. nitric oxide, but also nitrous oxide, nitrogen dioxide, dinitrogen pentoxide, etc.) [Add to Longdo] |
窒素固定 | [ちっそこてい, chissokotei] (n) nitrogen fixation [Add to Longdo] |
窒素固定法 | [ちっそこていほう, chissokoteihou] (n) nitrogen fixation (method) [Add to Longdo] |
窒素酸化物 | [ちっそさんかぶつ, chissosankabutsu] (n) nitrogen oxide [Add to Longdo] |
窒素循環 | [ちっそじゅんかん, chissojunkan] (n) nitrogen cycle [Add to Longdo] |
窒素族元素 | [ちっそぞくげんそ, chissozokugenso] (n) nitrogen group (group 15 of the periodic table) [Add to Longdo] |
窒素代謝 | [ちっそたいしゃ, chissotaisha] (n) nitrogen metabolism [Add to Longdo] |
窒素中毒 | [ちっそちゅうどく, chissochuudoku] (n) nitrogen narcosis [Add to Longdo] |
窒素肥料 | [ちっそひりょう, chissohiryou] (n) nitrogenous fertilizer; nitrogenous fertiliser [Add to Longdo] |
二酸化窒素 | [にさんかちっそ, nisankachisso] (n) nitrogen dioxide [Add to Longdo] |