n. 彩虹色

[医] 虹色, 晕色

[ noun ]
the visual property of something having a milky brightness and a play of colors from the surface
<noun.attribute>

Iridescence \Ir`i*des"cence\, n. [See {Iridescent}.]
Exhibition of colors like those of the rainbow, especially a
surface reflection which changes color with the angle at
which the object is viewed; the quality or state of being
iridescent; a prismatic play of color; as, the iridescence of
mother-of-pearl. It is due to interference of light waves
reflected from the front and back surfaces of a thin layer
transpatrent or semitransparent film.