异构

异构	yì gòu	isomeric (chemistry)
异	yì	different / other / hetero- / unusual / strange / surprising / to distinguish / to separate / to discriminate
构	gòu	variant of 构 / (Tw) (coll.) variant of 够 / to reach by stretching
构	gòu	to construct / to form / to make up / to compose / literary composition / paper mulberry (Broussonetia papyrifera)