The difference between Polychromatic and Rainbow
When used as adjectives, polychromatic means showing a variety, or a change, of colours, whereas rainbow means multicolored.
Rainbow is also noun with the meaning: a multicoloured arch in the sky, produced by prismatic refraction of light within droplets of rain in the air.
Rainbow is also verb with the meaning: to pattern with many colours, like a rainbow.
check bellow for the other definitions of Polychromatic and Rainbow
-
Polychromatic as an adjective:
Showing a variety, or a change, of colours; having many colours; multicoloured.
-
Polychromatic as an adjective (physics, of electromagnetic radiation):
Composed of more than one wavelength.
-
Rainbow as a noun:
A multicoloured arch in the sky, produced by prismatic refraction of light within droplets of rain in the air.
-
Rainbow as a noun:
Any prismatic refraction of light showing a spectrum of colours.
-
Rainbow as a noun (often used with “of”):
A wide assortment; a varied multitude.
Examples:
"a rainbow of possibilities"
-
Rainbow as a noun (figurative):
An illusion, mirage.
Examples:
"Many electoral promises are rainbows, vanishing soon after poll day."
-
Rainbow as a noun (baseball):
A curveball, particularly a slow one.
-
Rainbow as a noun (poker slang):
In Texas hold 'em or Omaha hold 'em, a flop that contains three different suits.
-
Rainbow as a noun:
Rainbow trout.
-
Rainbow as an adjective:
Multicolored.
-
Rainbow as an adjective (attributive, chiefly, US):
Made up of several races or ethnicities, or (more broadly) of several cultural or ideological factions.
-
Rainbow as an adjective (attributive):
LGBT.
-
Rainbow as an adjective (poker, chiefly, of a flop):
Composed entirely of different suits.
-
Rainbow as a verb (transitive):
To pattern with many colours, like a rainbow.