cer·e·sin \ˈserəsə̇n\noun alsocer·e·sine\ˈserəˌsēn, -_sə̇n\ (-s) Etymology: International Scientific Vocabulary ceres- (irregular from Latin cera wax) + -in, -ine : a white or yellow hard brittle wax made by purifying ozokerite and used as a substitute for beeswax; also: a petroleum wax (as paraffin wax) having similar physical properties