T1R1I1H4A1L1O1M3E1T1H4A1N1E1
22 points
TRIHALOMETHANE is validvalid
any of various derivatives of methane such as chloroform, that have three halogen atoms per molecule and are formed esp. during the chlorination of drinking water
any of various derivatives of methane such as chloroform, that have three halogen atoms per molecule and are formed esp. during the chlorination of drinking water