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Helwan

(Encyclopedia)Helwan wänˈ [key], town (1989 est. pop. 230,000), N Egypt, on the Nile River, opposite the ruins of Memphis; a suburb of Cairo. Manufactures include iron and steel, cement, and textiles; there is a ...

Young, Al

(Encyclopedia)Young, Al (Albert James), 1939-2021, Univ. of Calif., Berkeley (BA, 1969), African-American poet, b. Ocean Springs, Ms. The son of sharecroppers, Young'...

Languedoc

(Encyclopedia)Languedoc läNgdôkˈ [key], region and former province, S France, bounded by the foot of the Pyrenees, the upper Garonne River, the Auvergne Mts., the Rhône, and the Mediterranean. It comprises the ...

aloe

(Encyclopedia)aloe ălˈō [key] [Gr.], any species of the genus Aloe, succulent perennials of the family Lilaceae (lily family), native chiefly to the warm dry areas of S Africa and also to tropical Africa, but cu...

seahorse

(Encyclopedia)seahorse, common name for certain small fishes of the family Syngnathidae, inhabiting warm waters but sometimes found as far north as Cape Cod. The elongated head and snout of a seahorse, flexed at ri...

Siddons, Sarah Kemble

(Encyclopedia)Siddons, Sarah Kemble, 1755–1831, English actress. The most distinguished of the famous Kemble family, she had early theatrical experience in her father's traveling company, and at 18 she married Wi...

purslane

(Encyclopedia)CE5 Purslane, Portulaca oleraceae purslane, common name for some plants of the Portulaceae, a family of herbs and a few small shrubs, chiefly of the Americas. The portulacas or purslanes (genus Po...

air mass

(Encyclopedia)air mass, large body of air within the earth's atmosphere in which temperature and humidity, although varying at different heights, remain similar throughout the body at any one height. Air masses for...

dark matter

(Encyclopedia)dark matter, material that is believed to make up nearly 27% of the mass of the universe but is not readily visible because it neither emits nor reflects electromagnetic radiation, such as light or ra...

Lee, Henry

(Encyclopedia)Lee, Henry, 1756–1818, American Revolutionary soldier, known as Light-Horse Harry Lee, b. Prince William co., Va. He was a cousin of Arthur Lee, Francis L. Lee, Richard H. Lee, and William Lee and w...