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oxygen

(Encyclopedia)oxygen, gaseous chemical element; symbol O; at. no. 8; interval in which at. wt. ranges 15.99903–15.99977; m.p. −218.4℃; b.p. −182.962℃; density 1.429 grams per liter at STP; valence −2. T...

hurricane

(Encyclopedia)CE5 View into the eye of a hurricane showing the structure of the surrounding cloud wall hurricane, tropical cyclone in which winds attain speeds greater than 74 mi (119 km) per hr. Wind speeds gu...

Meridian

(Encyclopedia)Meridian mərĭdˈēən [key], city (1990 pop. 41,036), seat of Lauderdale co., E Miss., near the Ala. line; settled 1831, inc. 1860. It is an important rail and highway point and the trade and shippi...

loam

(Encyclopedia)loam, soil composed of sand, silt, clay, and organic matter in evenly mixed particles of various sizes. More fertile than sandy soils, loam is not stiff and tenacious like clay soils. Its porosity all...

Lompoc

(Encyclopedia)Lompoc lŏmˈpōk [key], city (1990 pop. 37,649), Santa Barbara co., S Calif., in an oil and agricultural area; inc. 1888. It has a huge flower-seed industry and two large diatomaceous earth mines. Pe...

Mahón

(Encyclopedia)Mahón mäōnˈ [key], Catalan Maó, town (1990 pop. 24,383), capital and chief town of Minorca island, Baleares prov., Spain, in the W Mediterranean Sea. A port with an excellent natural harbor defen...

Mariotte, Edme

(Encyclopedia)Mariotte, Edme ĕdˈmə märyôtˈ [key], 1620?–1684, French physicist. His De la nature de l'air (1676) includes a statement of Boyle's law (see gas laws), which he discovered independently and whi...

Horgan, Paul

(Encyclopedia)Horgan, Paul (Paul George Vincent O'Shaughnessy Horgan), 1903–95, American writer, b. Buffalo, N.Y. His diverse works reflect his fascination with the effects of history and landscape on people. Amo...

Highland

(Encyclopedia)Highland. 1 City (2020 pop. 55,629), San Bernardino co., SE Calif., in a citrus-grove area at the foot of the San Bernardino Mts. It has ...

heaves

(Encyclopedia)heaves, chronic pulmonary emphysema in horses. Heaves is characterized by the disruption of normal lung tissue with resultant loss of the lung's elastic recoil. A forced expiratory effort is needed to...