orthochromatic


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Related to orthochromatic: orthochromatic film

orthochromatic

[‚ȯr·thə·krə′mad·ik]
(biology)
Having normal staining characteristics.
(graphic arts)
Pertaining to sensitized materials that can be exposed by ultraviolet, blue, and green light, but not deep orange or red.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(39.) "The Value of Orthochromatic Plates in Color Reproduction," Wilson's Photographic Magazine 36, no.
Toluidine Blue (TB) is a basic nuclear dye used for metachromatic and orthochromatic staining of chromatin.This stain is a sensitive structural probe for DNA.Due to the cooperative nature of metachromatic stain which is indicative only in severe DNA damaged conditions, it is revealed in only poor sperm DNA integrity.
Holm was pointing out the differences in shading between orthochromatic and panchromatic film, but I think the corollary is "old photos may be staged so they could fib a little too".
Orthochromatic or metachromatic reactions in sperm head are originated when chromatin is highly condensed or decondensed, respectively (Andreetta et al., 1995).