dextrorotatory

adjective

dex·​tro·​ro·​ta·​to·​ry ˌdek-strō-ˈrō-tə-ˌtȯr-ē 

: turning clockwise or toward the right

specifically : rotating the plane of polarization of light toward the right

dextrorotatory crystals

compare levorotatory

Word History

First Known Use

circa 1872, in the meaning defined above

Medical Definition

dextrorotatory

adjective

dex·​tro·​ro·​ta·​to·​ry -ˈrōt-ə-ˌtōr-ē, -ˌtȯr- 

variants also dextrorotary

-ˈrōt-ə-rē 

: turning clockwise or toward the right

especially : rotating the plane of polarization of light toward the right

dextrorotatory crystals

compare levorotatory