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carbon disulfide

(Encyclopedia)carbon disulfide, CS2, liquid organic compound; it is colorless, foul-smelling, flammable, and poisonous. It can be prepared by direct reaction of carbon, e.g., as charcoal, with sulfur. It is a widel...

automation

(Encyclopedia)automation, automatic operation and control of machinery or processes by devices, such as robots that can make and execute decisions without human intervention. The principal feature of such devices i...

amyloplast

(Encyclopedia)amyloplast ămˈəlōplăstˌ [key], also called leucoplast, a nonpigmented organelle, or plastid, occurring in the cytoplasm of plant cells. Amyloplasts transform glucose, a simple sugar, into starch...

Noyori, Ryoji

(Encyclopedia)Noyori, Ryoji, 1938–, Japanese chemist, D.Eng. Kyoto Univ., 1967. Noyori was an instructor at Kyoto Univ. from 1963 to 1968. He then joined the faculty at Nagoya Univ., where he is a professor and d...

molting

(Encyclopedia)molting, periodical shedding and renewal of the outer skin, exoskeleton, fur, or feathers of an animal. In most animals the process is triggered by secretions of the thyroid and pituitary glands. Near...

Sheffield plate

(Encyclopedia)Sheffield plate, metalware of copper, silver-plated by fusion, originated at Sheffield, England. This process of plating was discovered c.1742 by a Sheffield cutler, Thomas Boulsover, who found while ...

collective bargaining

(Encyclopedia)collective bargaining, in labor relations, procedure whereby an employer or employers agree to discuss the conditions of work by bargaining with representatives of the employees, usually a labor union...

police power

(Encyclopedia)police power, in law, right of a government to make laws necessary for the health, morals, and welfare of the populace. The term has greatest currency in the United States, where it has been defined b...

lignin

(Encyclopedia)lignin lĭgˈnĭn [key], a highly polymerized and complex chemical compound especially common in woody plants. The cellulose walls of the wood become impregnated with lignin, a process called lignific...

mastitis, bovine

(Encyclopedia)mastitis, bovine, bacterial inflammation of the udder in dairy cattle. It is spread during the process of milking, either by machine or by hand, and by flies. The symptoms include inflammation of the ...