527 Group â A tax-exempt group organized under section 527 of the Internal Revenue Code to raise money for political activities. These groups are typically parties, candidates, committees or associations organized for the purpose of influencing an issue, policy, appointment or election, be it federal, state or local.
Noun. 1. trichromacy-the normal ability to see colors. chromatic vision, color vision. visual modality, visual sense, vision, sight-the ability to see; the visual faculty.
1. View of the human eye. 1  A black-looking aperture, the pupil,that allows light to enter the eye (it appears dark because of the absorbing pigments in the retina). 2  Three different layers The external layer, formed by the sclera and cornea.