|photog Compare panchromatic Sometimes shortened to: ortho of or relating to an emulsion giving a rendering of relative light intensities of different colours that corresponds approximately to the colour sensitivity of the eye, esp one that is insensitive to red light|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|a chattering or flighty, light-headed person.|
orthochromatic or·tho·chro·mat·ic (ôr'thə-krō-māt'ĭk)
Staining with the same color as that of the dye used. Used of a cell or tissue.