Sentence:  One sample , which had been exposed to the atmosphere after evacuation at 375 ` C , showed the presence of adsorbed <WSD>water</WSD> ( about 0.3 wt % ) as evidenced by a weak resonance line which was very narrow at room temperature and which disappeared , due to broadening , at low temperature . 
Meaning of the word marked with <WSD> tags:  binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent