-_nəˌtēn noun
( -s )
Etymology: International Scientific Vocabulary prehnitic (acid) + -ene
: a liquid aromatic hydrocarbon C 6 H 2 (CH 3 ) 4 prepared with other hydrocarbons by methylation of mesitylene or pseudocumene by means of the Friedel-Crafts reaction; 1,2,3,4-tetramethyl-benzene