結けっ晶しょう水すい

noun

water of crystallization; crystallization water

Technical term in chemistry referring to water molecules incorporated into a crystal structure.

• 硫りゅう酸さん銅どうの結けっ晶しょう水すいは加か熱ねつすると失うしなわれる。

  The water of crystallization in copper sulfate is lost upon heating.