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rubidium

(Encyclopedia)rubidium ro͞obĭdˈēəm [key], metallic chemical element; symbol Rb; at. no. 37; at. wt. 85.4678; m.p. 38.89℃; b.p. 686℃; sp. gr. 1.53 at 20℃; valence +1. Rubidium is a very soft silver-white ...

Servetus, Michael

(Encyclopedia)Servetus, Michael sərvēˈtəs [key], 1511–53, Spanish theologian and physician. His name in Spanish was Miguel Serveto. In his early years he came in contact with some of the leading reformers in ...

Cook, James

(Encyclopedia)Cook, James, 1728–79, English explorer and navigator. The son of a Yorkshire agricultural laborer, he had little formal education. After an apprenticeship to a firm of shipowners at Whitby, he joine...

gelatin

(Encyclopedia)gelatin or animal jelly, foodstuff obtained from connective tissue (found in hoofs, bones, tendons, ligaments, and cartilage) of vertebrate animals by the action of boiling water or dilute acid. It is...

Goering, Hermann Wilhelm

(Encyclopedia)Goering or Göring, Hermann Wilhelm both: hĕrˈmän vĭlˈhĕlm göˈrĭng [key], 1893–1946, German National Socialist leader. In World War I he was a hero of the German air force. An early member ...

puma

(Encyclopedia)puma ko͞oˈgər [key], New World member of the cat family, Puma concolor. Also known as mountain lion, catamount, panther, and painter, it ranges from S British Columbia to the southern tip of South ...

Pygmy

(Encyclopedia)Pygmy or Pigmy both: pĭgˈmē [key], term used for dark-skinned people who live in equatorial rain forests and average less than 59 in. (150 cm) in height. Some studies make a distinction between Neg...

Flynn, Michael Thomas

(Encyclopedia)Flynn, Michael Thomas, 1958–, U.S. military officer and government official, b. Middletown, R.I., Univ. of Rhode Island (B.S., 1981). Commissioned as ...

herpes simplex

(Encyclopedia)herpes simplex hûrˈpēz [key], an acute viral infection of the skin characterized by one or more painful, itching blisters filled with clear fluid. It is caused by either of two herpes simplex virus...

Piero della Francesca

(Encyclopedia)Piero della Francesca pyĕˈrō dĕlˈlä fränchāsˈkä [key], c.1420–1492, major Italian Renaissance painter, b. Borgo San Sepolcro (modern Sansepolcro). All his masterpieces were created in town...