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Stymphalian birds

(Encyclopedia)Stymphalian birds stĭmfāˈlēən [key], in Greek mythology, dangerous man-eating birds that infested the woods around Lake Stymphalus in Arcadia. As his fifth labor, Hercules frightened the birds in...

Santa Maria, city, United States

(Encyclopedia)Santa Maria, city (1990 pop. 61,284), Santa Barbara co., S Calif., near San Luis Obispo Bay; founded 1874 as Central City, renamed 1882, inc. 1905. A growing city, it has an economy based largely on a...

Eustachian tube

(Encyclopedia)Eustachian tube yo͞ostāˈshən [key] [for Bartolomeo Eustachi], a hollow structure of bone and cartilage extending from the middle ear to the rear of the throat, or pharynx, technically known as the...

hay fever

(Encyclopedia)hay fever, seasonal allergy causing inflammation of the mucous membranes of the nose and eyes. It is characterized by itching about the eyes and nose, sneezing, a profuse watery nasal discharge, and t...

holmium

(Encyclopedia)holmium hōlˈmēəm [key] [Lat.,=Stockholm], metallic chemical element; symbol Ho; at. no. 67; at. wt. 164.93032; m.p. about 1,474℃; b.p. about 2,425℃; sp. gr. 8.78 at 25℃; valence +3. Holmium ...

jet stream

(Encyclopedia)jet stream, narrow, swift currents or tubes of air found at heights ranging from 7 to 8 mi (11.3–12.9 km) above the surface of the earth. They are caused by great temperature differences between adj...

nitrous oxide

(Encyclopedia)nitrous oxide or nitrogen (I) oxide, chemical compound, N2O, a colorless gas with a sweetish taste and odor. Its density is 1.977 grams per liter at STP. It is soluble in water, alcohol, ether, and ot...

William, prince of Wales

(Encyclopedia)William, (William Arthur Philip Louis), 1982–, Prince of Wales of Great Britian, eldest son of King Charles III and Diana ...

aerogel

(Encyclopedia)aerogel, any of a group of extremely light and porous solid materials; the lightest is less than four times as dense as dry air. Aerogels are produced from certain gels (see colloid) by heating the ge...

Templewood, Samuel John Gurney Hoare, 1st Viscount

(Encyclopedia)Templewood, Samuel John Gurney Hoare, 1st Viscount, 1880–1959, British statesman. He entered parliament as a Conservative in 1910, served (1922–24, 1924–29) as secretary of state for air, and in...