Adjective
Free from color; transmitting light without decomposing it into its primary colors.
Uncolored; not absorbing color from a fluid; -- said of tissue.
Source: Webster's dictionaryAs the diamond is the crystalline Revelator of the achromatic white light of Heaven, so is a perfect poem the crystalline revelation of the Divine Idea. Thomas Holley Chivers
neutral colors like black or white Source: Internet
Brewster chose renowned achromatic lens developer Philip Carpenter as one of many manufacturers of the kaleidoscope in 1816. Source: Internet
Brewster chose renowned achromatic lens developer Philip Carpenter as the sole manufacturer of the kaleidoscope in 1817. Source: Internet
For an achromatic dispersive lens the converse must be adopted. Source: Internet
An alternative to achromatic doublets is the use of diffractive optical elements. Source: Internet