Optics. A band or strip of contrasting brightness or darkness produced by the diffraction or interference of light and usually seen as one of a…

Physics. A zone or layer in a transparent medium or material whose refractive index differs sufficiently from that of the surrounding medium or…

a thick band or bow of darkness seen crossing the coloured fringes in an interference pattern.

An isochromatic fringe or line.

Used attributively in connection with his discoveries in optics. interference fringes produced when a beam of (white or monochromatic) light passes…