Definition of laevorotatory in English:
 laevorotatory
(US levorotatory)
adjectiveˌliːvəʊˈrəʊtət(ə)riˌlivəˈroʊdəˌtɔri
Chemistry (of a compound) having the property of rotating the plane of a polarized light ray to the left, i.e. anticlockwise facing the oncoming radiation.
The opposite of dextrorotatory
 Example sentencesExamples
-  The chemical structure of the natural form of ephedrine is levorotatory, while the synthetic ephedrine is a racemic mixture.
 -  Hence this appeal to gastropodologists, if such a term exists, to come to the rescue and explain the unique (laevorotatory) development of the humble periwinkle.
 -  Morphine is an amphoteric pentacyclic alkaloid that exists naturally in its levorotatory form as columnar colorless prisms.
 
  Definition of levorotatory in US English:
 levorotatory
(British laevorotatory)
adjectiveˌlivəˈroʊdəˌtɔriˌlēvəˈrōdəˌtôrē
Chemistry (of a compound) having the property of rotating the plane of a polarized light ray to the left, i.e., counterclockwise facing the oncoming radiation.
The opposite of dextrorotatory
 Example sentencesExamples
-  The chemical structure of the natural form of ephedrine is levorotatory, while the synthetic ephedrine is a racemic mixture.
 -  Morphine is an amphoteric pentacyclic alkaloid that exists naturally in its levorotatory form as columnar colorless prisms.
 -  Hence this appeal to gastropodologists, if such a term exists, to come to the rescue and explain the unique (laevorotatory) development of the humble periwinkle.