NITROGEN

Pronunciation (US):

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 Dictionary entry overview: What does nitrogen mean? 

• NITROGEN (noun)
  The noun NITROGEN has 1 sense:

1. 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

  Familiarity information: NITROGEN used as a noun is very rare.

 Dictionary entry details 

• NITROGEN (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting substances

Synonyms:

atomic number 7; N; nitrogen

Hypernyms ("nitrogen" is a kind of...):

chemical element; element (any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter)

gas (a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely)

Hyponyms (each of the following is a kind of "nitrogen"):

azote (an obsolete name for nitrogen)

liquid nitrogen (nitrogen in a liquid state)

Holonyms ("nitrogen" is a substance of...):

air (a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of)

Derivation:

nitrify; nitrogenize (treat with nitrogen or a nitrogen compound)

nitrogenous (of or relating to or containing nitrogen)

 Context examples 

Also called BUN and urea nitrogen.

(Blood urea nitrogen, NCI Dictionary)

A quantitative measurement of the amount of urea nitrogen present in a serum sample.

(Blood Urea Nitrogen Measurement, NCI Thesaurus)

A tripeptidic nitrogen mustard compound and bifunctional alkylating agent with antineoplastic activity.

(Ambamustine, NCI Thesaurus)

Alkaloids contain nitrogen and can be made in the laboratory.

(Alkaloid, NCI Dictionary)

To measure the photodegradation effects, the team tested the new photocatalyst against NOx and recorded a 70% improvement in photocatalytic degradation of nitrogen oxides compared to standard titania.

(Smog-eating graphene composite reduces atmospheric pollution, University of Cambridge)

The natural oceanic cycles of phosphorus and nitrogen are also at risk.

(Oceans running out of oxygen at unprecedented rate, The Titi Tudorancea Bulletin)

A measurement of the urea nitrogen in a blood specimen.

(Blood Urea Nitrogen Measurement, NCI Thesaurus/CDISC)

The determination of the ratio of blood urea nitrogen compared to creatinine present in a sample.

(Blood Urea Nitrogen To Creatinine Ratio Measurement, NCI Thesaurus)

The agent also causes retention of nitrogen, sodium, potassium, phosphorus, as well as calcium.

(Methyltestosterone, NCI Thesaurus)

An unstable free-radical gas which reacts rapidly with oxygen to form nitrogen oxides.

(Nitric Oxide, NCI Thesaurus)