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Akron

(Encyclopedia)Akron ăkˈrən [key], city (2020 pop. 190,469), seat of Summit co., NE Ohio, on the Little Cuyahoga River; inc. 1865. Once the heart of the nation's rubber industry, Akro...

Glacier Bay National Park and Preserve

(Encyclopedia)Glacier Bay National Park and Preserve, SE Alaska, near Juneau. The park (3,224,840 acres/1,305,603 hectares) and the preserve (58,406 acres/23,646 hectares) were established in 1925 as a national mon...

fair-trade laws

(Encyclopedia)fair-trade laws, in the United States, a former group of statutes that permitted manufacturers to specify the minimum retail price of a commodity. The first fair-trade law was adopted (1931) by Califo...

fer-de-lance

(Encyclopedia)fer-de-lance fĕrˌ-də-lănsˈ [key], highly poisonous snake, Bothrops atrox, found in tropical South America and the West Indies. A pit viper, related to the bushmaster and the rattlesnake, it has h...

ergonomics

(Encyclopedia)ergonomics, the engineering science concerned with the physical and psychological relationship between machines and the people who use them. The ergonomicist takes an empirical approach to the study o...

graphene

(Encyclopedia)graphene, virtually transparent, highly conductive carbon material in which the atoms are organized into a honeycomblike arrangement and form a thin sheet that is one atom thick. Andre Geim and Konsta...

Pretorius, Andries Wilhelmus Jacobus

(Encyclopedia)Pretorius, Andries Wilhelmus Jacobus prĭtôrˈēəs, Du. änˈdrēs vĭlhĕlˈməs yäkōˈbəs prātôrˈēəs [key], 1799–1853, Boer (Afrikaner) leader. He was elected (1838) commandant general o...

Price, Leontyne

(Encyclopedia)Price, Leontyne lāˈəntēn [key], 1927–, American soprano, b. Laurel, Miss., as Mary Violet Leontine Price. She studied voice at Juilliard with Florence Page Kimball. Subsequently she appeared as ...

inductor

(Encyclopedia)inductor, electric device consisting of one or more turns of wire and typically having two terminals. An inductor is usually connected into a circuit in order to raise the inductance to a desired valu...

Integrated Pest Management

(Encyclopedia)Integrated Pest Management (IPM), planned program that coordinates economically and environmentally acceptable methods of pest control with the judicious and minimal use of toxic pesticides. IPM progr...