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Ryder, Donald P.
(Encyclopedia)Ryder, Donald P., , 1926-2021, African-American architect, b. Springfield, Oh., Univ. of Illinois (BA, 1951). Ryder was raised in Dayton, Ohio. He serve...Pauncefote of Preston, Julian Pauncefote, 1st Baron
(Encyclopedia)Pauncefote of Preston, Julian Pauncefote, 1st Baron pônsˈfo͝ot [key], 1828–1902, British diplomat. He served in various positions in the colonies before becoming (1882) permanent undersecretary f...Grignard reagent
(Encyclopedia)Grignard reagent grēnyärdˈ rēāˈjənt [key], any of an important class of extremely reactive chemical compounds used in the synthesis of hydrocarbons, alcohols, carboxylic acids, and other compou...carboxyl group
(Encyclopedia)carboxyl group kärbŏkˈsĭl [key], in chemistry, functional group that consists of a carbon atom joined to an oxygen atom by a double bond and to a hydroxyl group, OH, by a single bond. Carboxylic a...Living Theater
(Encyclopedia)Living Theater: see drama, Western; Beck, Julian. ...debenture
(Encyclopedia)debenture dəbĕnˈchər [key], document acknowledging indebtedness. In Great Britain a debenture is practically the same as a bond, and debenture stock is similar to preferred stock. In the United St...hydroxyl group
(Encyclopedia)hydroxyl group hīdrŏkˈsĭl [key], in chemistry, functional group that consists of an oxygen atom joined by a single bond to a hydrogen atom. An alcohol is formed when a hydroxyl group is joined by ...Harvard College Observatory
(Encyclopedia)Harvard College Observatory, astronomical observatory located in Cambridge, Mass., operated by Harvard (Harvard College at the time of the observatory's founding in 1839). Its equipment includes a 61-...formyl group
(Encyclopedia)formyl group fôrˈmĭl [key], in chemistry, functional group that consists of a carbonyl group joined by a single bond to a hydrogen atom. Aldehydes are compounds that contain a formyl group joined b...resonance, in chemistry
(Encyclopedia)resonance, in chemistry: see chemical bond. ...Browse by Subject
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