NA

Pronunciation (US):

 Dictionary entry overview: What does Na mean? 

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

1. a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)

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

 Dictionary entry details 

• NA (noun)

Meaning:

A silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)

Classified under:

Nouns denoting substances

Synonyms:

atomic number 11; Na; sodium

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

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

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

halite; rock salt (naturally occurring crystalline sodium chloride)

brine; saltwater; seawater (water containing salts)