noun, noun which may take the genitive case particle 'no'
levorotatory; laevorotatory
Scientific term used in chemistry and physics to describe a substance that rotates plane-polarized light to the left (counterclockwise).
この化合物は左旋性を示す。
This compound exhibits levorotatory properties.
左旋性の物質は偏光面を左に回転させる。
Levorotatory substances rotate the plane of polarization to the left.
光学活性 is the broader property of rotating polarized light, encompassing both 左旋性 and 右旋性.
Compound of 左 (left) + 旋 (rotate) + 性 (property), literally 'left-rotation property'. A modern scientific coinage based on kanji meanings.