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Carew, George, Baron Carew of Clopton and earl of Totnes

(Encyclopedia)Carew, George, Baron Carew of Clopton and earl of Totnes kəro͞oˈ, tŏtˈnĭs [key], 1555–1629, English soldier and statesman. He began his military career in Ireland in 1574 and served (1588–92...

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...

organometallic chemistry

(Encyclopedia)organometallic chemistry, the reactions and use of a class of compounds (R-M) that contain a covalent bond between carbon and metal. They are prepared either by direct reaction of the metal with an or...

electronegativity

(Encyclopedia)electronegativity ĭlĕkˌtrōnĕgətĭvˈətē [key], in chemistry, tendency for an atom to attract a pair of electrons that it shares with another atom (see chemical bond). For example, the molecule...

Baring

(Encyclopedia)Baring bârˈĭng [key], British family of bankers. Sir Francis Baring (1740–1810) founded (1763) the John and Francis Baring Company, which he renamed Baring Brothers and Company in 1806. At first ...

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...

Buckingham, George Villiers, 1st duke of

(Encyclopedia)Buckingham, George Villiers, 1st duke of vĭlˈyərz, bŭkˈĭng-əm [key], 1592–1628, English courtier and royal favorite. He arrived (1614) at the English court as James I was tiring of his favori...

Lytton, Victor Alexander George Robert Lytton, 2d earl of

(Encyclopedia)Lytton, Victor Alexander George Robert Lytton, 2d earl of, 1871–1947, British diplomat, son of Edward Robert Bulwer-Lytton, 1st earl of Lytton. He was undersecretary of state for India (1920–22) a...

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...

Rodney, George Brydges Rodney, 1st Baron

(Encyclopedia)Rodney, George Brydges Rodney, 1st Baron, 1719–92, British admiral. He served with distinction in the Seven Years War (1757–63), his most notable achievement being the capture (1762) of Martinique...