atomic number 7

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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:
nitrogen, N
• Derivationally related forms:
nitrogenous (for: nitrogen), nitrogenize (for: nitrogen), nitrify (for: nitrogen)
• Hypernyms:
chemical element, element, gas
• Hyponyms:
azote, liquid nitrogen
• Substance Holonyms:
air