The Collaborative International Dictionary of English. 2000.
Starch — Starch, CAS# 9005 25 8, chemical formula (C6H10O5)n is a polysaccharide carbohydrate consisting of a large number of glucose monosaccharide units joined together by glycosidic bonds. All plant seeds and tubers contain starch which is… … Wikipedia
starch paper — noun A test paper for iodine, coated with starch and potassium iodide • • • Main Entry: ↑starch … Useful english dictionary
ozone paper — o zone pa per (Chem.) Paper coated with starch and potassium iodine, also called {starch iodide paper}. It turns blue when exposed to ozone. [Webster 1913 Suppl. +PJC] … The Collaborative International Dictionary of English
test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… … Medical dictionary
carbohydrate — /kahr boh huy drayt, beuh /, n. any of a class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones, or change to such substances on simple chemical transformations, as hydrolysis, oxidation, or reduction, and that form the… … Universalium
Invisible ink — Invisible ink, also known as security ink, is a substance used for writing, which is invisible either on application or soon thereafter, and which later on can be made visible by some means. Invisible ink is one form of steganography, and it has… … Wikipedia
photography, history of — Introduction method of recording the image of an object through the action of light, or related radiation, on a light sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the… … Universalium
Ethanol — For other uses, see Ethanol (disambiguation). Grain alcohol redirects here. It is not to be confused with Neutral grain spirit. Ethanol … Wikipedia
Human nutrition — For aspects of nutrition science not specific to humans, see Nutrition. Human nutrition is the provision to humans to obtain the materials necessary to support life. In general, humans can survive for two to eight weeks without food, depending on … Wikipedia
Color photography — Color film redirects here. For the motion picture equivalent, see Color motion picture film. A circa 1850 Hillotype photograph of a colored engraving. Long believed to be a complete fraud, recent testing found that Levi Hill s process did… … Wikipedia
