19-letter words containing c, h, o, r, i, d
- pseudo-hieroglyphic — noting or pertaining to a script dating from the second millennium b.c. that appears to be syllabic and to represent the Phoenician language and that is inscribed on objects found at Byblos.
- psychoendocrinology — the study of the relationship between the endocrine system and various symptoms or types of mental illness.
- pyrophosphoric acid — a crystalline, water-soluble powder, H 4 P 2 O 7 , formed by the union of one molecule of phosphorus pentoxide with two molecules of water.
- radiochromatography — chromatography in which radiolabeled substances on the chromatogram are determined quantitatively or qualitatively by measuring their radioactivity.
- radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
- regular icosahedron — an icosahedron in which each of the faces is an equilateral triangle
- reticuloendothelial — pertaining to, resembling, or involving cells of the reticuloendothelial system.
- rhodesian ridgeback — a large short-haired breed of dog characterized by a ridge of hair growing along the back in the opposite direction to the rest of the coat. It was originally a hunting dog from South Africa
- run-length encoding — A kind of compression algorithm which replaces sequences ("runs") of consecutive repeated characters (or other units of data) with a single character and the length of the run. This can either be applied to all input characters, including runs of length one, or a special character can be used to introduce a run-length encoded group. The longer and more frequent the runs are, the greater the compression that will be achieved. This technique is particularly useful for encoding black and white images where the data units would be single bit pixels.
- saccharolactic acid — mucic acid.
- sandwich generation — the generation of people still raising their children while having to care for their aging parents.
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- south african dutch — the Boers.
- telephone directory — a book, directory, or the like, usually containing an alphabetical list of telephone subscribers in a city or other area, together with their addresses and telephone numbers.
- theatrical producer — a person who is responsible for all aspects of a theatrical production
- thiophosphoric acid — an acid derived from phosphoric acid by substituting one or more sulfur atoms for oxygen atoms.
- to be reckoned with — of considerable importance or influence
- to change your mind — If you change your mind, or if someone or something changes your mind, you change a decision you have made or an opinion that you had.
- to the prejudice of — to the detriment of
- trahison des clercs — a compromising of intellectual integrity, esp. for political reasons
- trickle-down theory — an economic theory that monetary benefits directed especially by the government to big business will in turn pass down to and profit smaller businesses and the general public.
- tricks of the trade — expert techniques
- vinylidene chloride — a colorless, volatile, flammable liquid, C 2 H 2 Cl, that is copolymerized chiefly with vinyl chloride to form saran.
- white-winged scoter — a blackish North American duck, Melanitta deglandi, having a white patch on each wing.