ATOMIC NUMBER 7

 Dictionary entry overview: What does atomic number 7 mean? 

• ATOMIC NUMBER 7 (noun)
  The noun ATOMIC NUMBER 7 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: ATOMIC NUMBER 7 used as a noun is very rare.

 Dictionary entry details 

• ATOMIC NUMBER 7 (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 ("atomic number 7" 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 "atomic number 7"):

azote (an obsolete name for nitrogen)

liquid nitrogen (nitrogen in a liquid state)

Holonyms ("atomic number 7" is a substance of...):

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

 Context examples 

An element with atomic symbol N, atomic number 7, and atomic weight 14.01.

(Nitrogen, NCI Thesaurus)