Dictionary: A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z


[mez-uh-sfeer, mes-, mee-zuh-, -suh-] /ˈmɛz əˌsfɪər, ˈmɛs-, ˈmi zə-, -sə-/

(in the classification of the earth’s atmosphere by chemical properties) the region between the ionosphere and the exosphere, extending from about 250–650 miles (400–1050 km) above the surface of the earth.
(in the classification of the earth’s atmosphere by thermal properties) the region between the stratosphere and the thermosphere, extending from about 20–50 miles (32–80 km) above the surface of the earth.
the atmospheric layer lying between the stratosphere and the thermosphere, characterized by a rapid decrease in temperature with height
the solid part of the earth’s mantle lying between the asthenosphere and the core

1950, from meso- + second element in atmosphere.
The region of the Earth’s atmosphere lying above the stratosphere and below the thermosphere, from a height of about 50 km (31 mi) to about 80 km (50 mi) above the Earth’s surface. In the mesosphere temperatures decrease with increasing altitude due to the decreasing absorption of ultraviolet radiation from the Sun. At the top of this region temperatures are around -95°C (-135.4°F). Most of the meteors that enter Earth’s atmosphere burn up while passing through the mesosphere. See also exosphere, stratosphere, thermosphere, troposphere., See illustration at atmosphere.


Read Also:

  • Mesosystolic

    mesosystolic mes·o·sys·tol·ic (měz’ə-sĭ-stŏl’ĭk, měs’-) adj. Relating to the middle of the systole of the heart.

  • Mesotendineum

    mesotendineum mes·o·ten·di·ne·um (měz’ō-těn-dĭn’ē-əm) n. Any of the synovial layers that pass from a tendon to the wall of a tendon sheath where tendons lie within osteofibrous canals. Also called mesotendon.

  • Mesothelioma

    [mez-uh-thee-lee-oh-muh, mes-, mee-zuh-, -suh-] /ˌmɛz əˌθi liˈoʊ mə, ˌmɛs-, ˈmi zə-, -sə-/ noun, plural mesotheliomas, mesotheliomata [mez-uh-thee-lee-oh-muh-tuh, mes-, mee-zuh-, -suh-] /ˌmɛz əˌθi liˈoʊ mə tə, ˌmɛs-, ˈmi zə-, -sə-/ (Show IPA). Pathology. 1. a malignant tumor of the covering of the lung or the lining of the pleural and abdominal cavities, often associated with exposure […]

  • Mesothelium

    [mez-uh-thee-lee-uh m, mes-, mee-zuh-, -suh-] /ˌmɛz əˈθi li əm, ˌmɛs-, ˌmi zə-, -sə-/ noun, plural mesothelia [mez-uh-thee-lee-uh, mes-, mee-zuh-, -suh-] /ˌmɛz əˈθi li ə, ˌmɛs-, ˌmi zə-, -sə-/ (Show IPA). Anatomy, Embryology. 1. of mesodermal origin, which lines the body cavities. /ˌmɛsəʊˈθiːlɪəm/ noun (pl) -liums, -lia (-lɪə) 1. epithelium, derived from embryonic mesoderm lining body […]

Disclaimer: Mesosphere definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.