ˈstilˌbēn noun
( -s )
Etymology: International Scientific Vocabulary stilb- (from Greek stilbos glistening) + -ene
: an aromatic hydrocarbon C 6 H 5 CH = CHC 6 H 5 occurring in cis and trans forms : sym -diphenyl-ethylene ; especially : the more stable trans form obtained in large shining crystals (as by heating benzaldehyde with sulfur or by dehydrating benzyl-phenyl-carbinol) useful as phosphors (as in scintillation counters)