The music video for John Legend 's single Everybody Knows has already been viewed 9,997 times since it was posted on Tuesday, January 20, 2009. The video belongs to the music genre of R&B.
hydration (Noun). the process of providing an adequate amount of water to body tissues. hydration (Noun). the chemical reaction by which a substance (such as cement) combines with water, giving off heat to form a crystalline structure in its setting and hardening.
any of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, Na 2 CO 3 â10H 2 O, the water is loosely held and is easily lost on heating; in others, as sulfuric acid, SO 3 âH 2 O, or H 2 SO 4 , it is strongly held as water of constitution. verb (used with or without object), hydrated, hydrating. 2. to combine chemically with water.