levorotatory

le·vo·ro·ta·to·ry  (lv-rt-tôr, -tr) also le·vo·ro·ta·ry (-t-r)

adj. Symbol l-

Of or relating to an optically active chemical that rotates the plane of polarized light to the left, or counterclockwise: Only levorotatory amino acids are biologically active.

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levorotatory  (lv-rt-tôr)

Relating to a substance that causes levorotation.

Thesaurus

Adj.

1.

levorotatory - rotating to the left levorotary, left-handed anticlockwise, contraclockwise, counterclockwise - in the direction opposite to the rotation of the hands of a clock