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tomato

(Encyclopedia)tomato, plant (Lycopersicon esculentum) of the family Solanaceae (nightshade family), related to the potato and eggplant. Although cultivated in Mexico and Peru for centuries before the European conqu...

umbilical cord

(Encyclopedia)umbilical cord ŭmbĭlˈĭkəl [key], cordlike structure about 22 in. (56 cm) long in the pregnant human female, extending from the abdominal wall of the fetus to the placenta. Its chief function is t...

Sennacherib

(Encyclopedia)Sennacherib sĕnăkˈərĭb [key] or Senherib, d. 681 b.c., king of Assyria (705–681 b.c.). The son of Sargon, Sennacherib spent most of his reign fighting to maintain the empire established by his ...

citric acid

(Encyclopedia)citric acid or 2-hydroxy-1,2,3-propanetricarboxylic acid, HO2CCH2C(OH)(CO2H)CH2CO2H, an organic carboxylic acid containing three carboxyl groups; it is a solid at room temperature, melts at 153℃, an...

chow chow

(Encyclopedia)chow chow, breed of powerful nonsporting dog whose origins are obscure but whose development was accomplished many centuries ago in China. It stands from 18 to 20 in. (45.7–50.8 cm) high at the shou...

anthracene

(Encyclopedia)CE5 anthracene ănˈthrəsēn [key], C14H10, solid organic compound derived from coal tar. It melts at 218℃ and boils at 354℃. When pure it is colorless and has a violet fluorescence; it darken...

Gossart, Jan

(Encyclopedia)Gossart or Gossaert, Jan, c.1478–1532, Flemish painter, b. Maubeuge, also known as Jan de Mabuse after his birthplace. He may have studied in Bruges before joining the Antwerp guild in 1503. In 1508...

Grünberg, Peter Andreas

(Encyclopedia)Grünberg, Peter Andreas pāˈtər ändrāˈäs grünbĕrkˈ [key], 1939–2018 German physicist, b. Pilsen, Germany (now Plzeň, Czech Republic). After receiving his Ph.D. at the Darmstadt Univ. of T...

pointer

(Encyclopedia)pointer, breed of large sporting dog developed in England more than 300 years ago. It stands between 23 and 26 in. (58.4–66.4 cm) high at the shoulder and weighs between 50 and 60 lb (22.7–27.2 kg...

Pompidou, Georges Jean Raymond

(Encyclopedia)Pompidou, Georges Jean Raymond zhôrzh pôNpēdo͞oˈ [key], 1911–74. French political leader, president of France (1969–74). Georges Pompidou taught school and then served in World War II until t...