Saturday, 17 November 2012

chromatography=كروماتوغرافيا


chromatography=كروماتوغرافيا

WIKIPEDIA:
Chromatography [|krəʊmə|tɒgrəfi] (from Greek χρῶμα chroma "color" and γράφειν graphein "to write") is the collective term for a set of laboratory techniques for the separation of mixtures.


ONLINE ETYMOLOGY DICTIONARY:
chromatography (n.)
1731, from chromato-, Latinized comb. form of Gk. khroma (gen. khromatos) "color" (see chroma), denoting "color" or "chromatin" + -graphy.

chroma (n.)
"quality or intensity of color," 1889, from Gk. khroma "surface of the body, skin, color of the skin, color," related to khros "surface of the body, skin," khrozein "to touch the surface of the body, to tinge, to color," explained as being somehow from PIE *ghreu- "to rub, grind" (see grit (n.)).
-graphy
word-forming element meaning "process of writing or recording" or "a writing, recording, or description," from French or Ger. -graphie, from Gk. -graphia "description of," from graphein "write, express by written characters," earlier "to draw, represent by lines drawn," originally "to scrape, scratch" (on clay tablets with a stylus), from PIE root *gerbh- "to scratch, carve" (see carve). In modern use, especially in forming names of descriptive sciences.


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