from The Century Dictionary and Cyclopedia
- n. In the United States, the social or political line of demarkation between the white or dominant class and persons of pure or mixed African descent.
- n. plural In seal-engraving, and in heraldic work in black and white, fine parallel lines engraved upon the field for the conventional expression of heraldic colors.
- n. In psychophysics: The outline of the plane figure (circle, square, triangle) which gives a diagrammatic representation of color sensations and their interrelation.
- n. Any straight line joining two points on or within the solid figure (sphere, double cone, double pyramid) which gives a diagrammatic representation of the totality of visual sensations.
Sorry, no etymologies found.