1. levorotatory - Adjective
2. levorotatory - Adjective Satellite
Turning or rotating the plane of polarization towards the left; levogyrate, as levulose, left-handed quartz crystals, etc.
Source: Webster's dictionaryThe two stereoisomers are identified with the prefixes D - and L -, according to the sense of rotation: D -glyceraldehyde is dextrorotatory (rotates the polarization axis clockwise), while L -glyceraldehyde is levorotatory (rotates it counterclockwise). Source: Internet
Racemic adrenaline is a 1:1 mixture of the dextrorotatory ( D ) and levorotatory ( L ) isomers of adrenaline. citation The L -form is the active component. Source: Internet