l[ae]vorotatory

from The Collaborative International Dictionary of English v.0.48
Laevorotatory \L[ae]"vo*ro"ta*to*ry\, a.
   Same as {Levorotatory}. Cf. {Dextrorotatory}.
   [1913 Webster]
    
from The Collaborative International Dictionary of English v.0.48
Levorotatory \Le`vo*ro"ta*to*ry\ (-r[=o]"t[.a]*t[-o]*r[y^]), a.
   [Levo- + rotatory.] (Chem. & Physics)
   Turning or rotating the plane of polarization of light
   towards the left; -- applied to crystals and compounds
   exhibiting optical activity, such as levulose, left-handed
   quartz crystals, etc. Opposite of {dextrorotatory}. [Written
   also {l[ae]vorotatory}.]
   [1913 Webster +PJC]
    

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