NA

名词 na:

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)
   同义词：sodium, atomic number 11

Na
NONE（无词性）
The symbol for the element sodium
元素sodium的符号

来源：
From New Latin natrium
源自 现代拉丁语 natrium
from French natron [natron] * see natron
源自 法语 natron [泡碱] *参见 natron