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endometriosis

(Encyclopedia)endometriosis ĕnˌdəmēˌtrē-ōˈsĭs [key], a condition in which small pieces of the endometrium (the lining of the uterus) migrate to other places in the pelvic area. The endometrial fragments ma...

eutrophication

(Encyclopedia)eutrophication yo͞otrōˌfĭkāˈshən [key], aging of a lake by biological enrichment of its water. In a young lake the water is cold and clear, supporting little life. With time, streams draining i...

trumpet

(Encyclopedia)trumpet, brass wind musical instrument of part cylindrical, part conical bore, in the shape of a flattened loop and having three piston valves to regulate the pitch. Its origin is ancient; records of ...

draft, in banking

(Encyclopedia)draft, in banking, order by one party to another party to pay a stated sum to the person or firm in whose favor the draft is made. It is similar in form to the ordinary bank check. Often the drawer an...

echo sounder

(Encyclopedia)echo sounder, an older instrumentation system for indirectly determining ocean floor depth. Echo sounding is based on the principle that water is an excellent medium for the transmission of sound wave...

enamel

(Encyclopedia)enamel, a siliceous substance fusible upon metal. It may be so compounded as to be transparent or opaque and with or without color, but it is usually employed to add decorative color. It was used to d...

Guaraní

(Encyclopedia)Guaraní gwäränēˈ [key], indigenous group living in the eastern lowland area of South America, related to the Tupí of the Rio São Francisco and the Tupinambá on the Atlantic coast. The Guaraní...

Smith, W. Eugene

(Encyclopedia)Smith, W. Eugene (William Eugene Smith), 1918–78, American photojournalist, b. Wichita, Kan. Smith is considered one of the principal masters of modern photojournalism. The distorted newspaper cover...

Basket Makers

(Encyclopedia)Basket Makers, name given to the members of an early Native North American culture in the Southwest, predecessors of the Pueblo. Because of the cultural continuity from the Basket Makers to the Pueblo...

Solon, Athenian statesman

(Encyclopedia)Solon sōˈlən [key], c.639–c.559 b.c., Athenian statesman, lawgiver, and reformer. He was also a poet, and some of his patriotic verse in the Ionic dialect is extant. At some time (perhaps c.600 b...