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urethra

(Encyclopedia)urethra yo͝orēˈthrə [key], canal in most mammals that carries urine from the bladder to the outside of the body; in the male it also serves as a genital duct. The urethra is about 11⁄2 in. long ...

Sadi

(Encyclopedia)Sadi or Saadi both: säˈdē [key], Persian poet, 1184–1291. b. Shiraz. Orphaned at an early age, Sadi studied in Baghdad, where he met Suhrawardi, a major Sufi figure. Having to flee Baghdad becaus...

Cameron, John

(Encyclopedia)Cameron, John kămˈərən [key], c.1579–1625, Scottish scholar and theologian. As teacher, lecturer, and preacher at Bordeaux, Saumur, and other cities on the Continent, he came to be celebrated fo...

rinderpest

(Encyclopedia)rinderpest or cattle plague, an acute and highly infectious viral disease of cattle. It less frequently affects other ruminants, such as sheep, goats, and wild game. After an incubation period of thre...

urinary system

(Encyclopedia)CE5 Urinary system urinary system, group of organs of the body concerned with excretion of urine, that is, water and the waste products of metabolism. In humans, the kidneys are two small organs s...

sperm whale

(Encyclopedia)sperm whale, largest of the toothed whales, Physeter catodon, found in the Atlantic and Pacific oceans. It is also called cachalot. Male sperm whales may grow to more than 70 ft (21 m) long and female...

Des Plaines, river, United States

(Encyclopedia)Des Plaines, river, 110 mi (177 km) long, rising in SE Wis., and flowing S and SW through NE Ill., joining the Kankakee River S of Joliet, Ill., to form the Illinois River. The lower Des Plaines is pa...

Dettifoss

(Encyclopedia)Dettifoss dĕˈtĭfôs [key], waterfall, in the Jökulsá á Fjöllum River, NE Iceland. Iceland's most impressive fall, it drops 144 ft (44 m) into a long canyon. ...

Four Lakes

(Encyclopedia)Four Lakes, chain of canalized lakes in S Wis.: Waubesa, Kegonsa, Mendota, and Monona. Between the last two lies Madison, the state capital. Largest of the four is Mendota, c.6 mi (9.7 km) long, on wh...

Ishim, river, Russia and Kazakhstan

(Encyclopedia)Ishim, river, c.1,130 mi (1,819 km) long, W Siberian Russia and Kazakhstan. It rises N of Qaraghandy in Kazakhstan (where it is known as the Esil), flows W past Atbasar, N past Petropavl, and then joi...