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Uranus , in astronomy

(Encyclopedia)Uranus yo͝orāˈnəs, yo͝orˈə– [key], in astronomy, 7th planet from the sun, at a mean distance of 1.78 billion mi (2.87 billion km), with an orbit lying between those of Saturn and Neptune; its...

skin cancer

(Encyclopedia)skin cancer, malignant tumor of the skin. The most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. Rarer forms include mycosis fungoides (a type of lymphom...

interference

(Encyclopedia)CE5 Constructive interference: Two crests or two troughs meet and combine (A, B, C). Destructive interference: A crest and a trough meet and cancel each other (D, E, F). interference, in physics, ...

Eocene epoch

(Encyclopedia)Eocene epoch ēˈəsēnˌ [key], second epoch of the Tertiary period in the Cenozoic era of geologic time, from approximately 54.9 to 38 million years ago. The Eocene in North America was marked by th...

Herat

(Encyclopedia)Herat hĕrätˈ [key], city (1984 est. pop. 161,000), capital of Herat prov., NW Afghanistan, on the Hari Rud. The fertile river valley is renowned for its fruits, especially grapes. Herat has textile...

Jersey City

(Encyclopedia)Jersey City, city (1990 pop. 228,537), seat of Hudson co., NE N.J., a port on a peninsula formed by the Hudson and Hackensack rivers and Upper New York Bay, opposite lower Manhattan; settled before 16...

Matthiessen, Peter

(Encyclopedia)Matthiessen, Peter măthˈəsən [key], American writer, naturalist, and adventurer, b. New York City, grad. Yale (1950). A founder (1951) of the literary Paris Review, he published his first novel, R...

Surrey

(Encyclopedia)Surrey, county (1991 pop. 997,000), 653 sq mi (1,691 sq km), SE England. The county seat is Guildford. Administratively, the county is divided into the districts of Elmbridge, Epsom and Ewell, Guildfo...

DMX

(Encyclopedia)DMX,1970-2021, b. Mount Vernon, N.Y., as Earl Simmons. DMX grew up in Yonkers, NY, in the 1980s, in a highly dysfunctional family; abandoned by his fath...

chocolate

(Encyclopedia)chocolate, general term for the products of the seeds of the cacao or chocolate tree, used for making beverages or confectionery. The flavor of chocolate depends not only on the quality of the cocoa n...