a plane that cuts a molecule in two halves, each of which is the mirror image of the other
a plane that cuts through a molecule such that one half of the molecule is a perfect reflection of the other half of the molecule
a plane that divides a solid into two mirror-image pieces of the solid
a plane which, when passed through an organism, divides it into mirror images halves
A plane dividing a body into two equal and symmetrical parts similarly disposed in reference to the plane.
A plane that divides a 3-D object into 2 parts, each a mirror image of the other.