potassium

名词 potassium:

1. a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
   同义词：K, atomic number 19

1. No potassium did we find in this mineral.
   在这种矿石中我们没有发现钾。
2. Potassium is necessary to the existence of all living things.
   钾是所有生物生存必须的。

po.tas.si.um

n.Symbol K （名词）符号 K
A soft, silver-white, highly or explosively reactive metallic element that occurs in nature only in compounds. It is obtained by electrolysis of its common hydroxide and found in, or converted to, a wide variety of salts used especially in fertilizers and soaps. Atomic number 9; atomic weight 39.02; melting point '3.'5=C; boiling point 774=C; specific gravity 0.8'2; valence .See table at element
钾：只以化合物形式存在的柔软的，银白色的，极为活泼的金属元素。这种元素通过将其常见的氢氧化物进行电解而得到，存在于或转化成各种各样的盐，这些盐尤用于制造化肥及肥皂。原子序数为9；原子量39.02；熔点'3.'5=C；沸点774=C；比重为0.8'2；原子价为参见 element

来源：
From potash [from which it was first obtained]
源自 potash [钾最初得于（钾盐）]

【引伸】
potas.sic
adj.（形容词）