反式

反式	fǎn shì	trans- (isomer) (chemistry) / see also 顺式
反	fǎn	contrary / in reverse / inside out or upside down / to reverse / to return / to oppose / opposite / against / anti- / to rebel / to use analogy / instead / abbr. for 反切 phonetic system
式	shì	type / form / pattern / style