trichrome

adj

1. (not-comparable)trichromatic (involving three colours)

   “Like the Mumuye and Chamba examples they have a trichrome system of decoration in which red (ochre) and white (chalk) accents are set against an opaque and granular black (soot) background.”

2. (not-comparable)Staining three different tissues three different colours.

   “To summarize: it is possible to make reasonable predictions about the type of force to which connective tissues are subjected by examination of the morphological and biochemical features of[…]the histological staining reaction of the collagen fibers by the Masson trichrome stain[…]”

   “Mitochondrial content was estimated based on visualization of the modified Gomori's trichrome stain.”

noun

1. A combined stain that stains three different tissues three different colours.

   “The stains used were hematoxylin and eosin (H&E), Masson's trichrome, and Verhoeff's stain. Sections stained with hematoxylin and eosin have nuclei that were stained blue, cartilage and calcium deposits stained dark blue, cytoplasm and other constituents stained shades of red, and blood stained bright red.”

   “Muscle sections stained with modified Gomori's trichrome demonstrated that thyroarytenoid muscles from both the 1- and 2-week chronic nerve-stimulated rats contained fibers with mitochondrial accumulations.”

   “Segmental sections 5 μm thick were prepared and stained with hematoxylin and eosin, and Masson’s trichrome and analyzed by the senior pathologist using a light microscope (Olympus BX-50, Olympus, Japan).”