orthochromatic adjective. [,ɔ:Ɵǝʊkrǝ'matɪk] L19.
[from ORTHO- + CHROMATIC.]
1. Photography. Having a sensitivity which is more nearly uniform throughout the visible range than that of silver halide used alone but which is relatively low in the red and high in the blue part of the spectrum. Cf. PANCHROMATIC adjective 1. L19.

2. Biology. Exhibiting or characterized by staining of the same colour as that of a stain solution applied. Cf. METACHROMATIC. L19.

■ ortho'chromatize verb trans. make orthochromatic L19.

[TahlilGaran] English Dictionary ▲