mesospheren.

Brit.

/ˈmɛsə(ʊ)sfɪə/, U.S.

/ˈmɛzəˌsfɪ(ə)r/; see also meso- comb. form.

Origin: Formed within English, by compounding. Etymons: meso- comb. form, -sphere comb. form.

Etymology: < meso- comb. form + -sphere comb. form (see quot. 1939 at sense 1). Compare French mésosphère (20th cent.).In sense 2 apparently an independent formation (see quot. 1950 at sense 2).

1. Geology. Originally: the middle layer of the earth's interior between the core and the crust; the earth's mantle. Later: the layer of the upper mantle immediately below the lithosphere; (also) the layer of the mantle immediately below the asthenosphere.

ΘΚΠ

the world > the earth > structure of the earth > [noun] > mantle > mesosphere

mesosphere1939

1939 H. S. Washington in B. Gutenberg Internal Constit. of Earth v. 92 There would be some advantage in using the terms kentrosphere for the core or nucleus, mesosphere for the intermediate shell and perisphere for the uppermost layer or crust.

1968 Jrnl. Geophysical Res. 73 5856/2 The lithosphere and the mesosphere have relatively high seismic velocities and propagate seismic waves without great attenuation.

1990 P. Kearey & F. J. Vine Global Tectonics viii. 149 The bottom of the plate approaches the mesosphere, which resists descent and throws the leading tip into compression.

1999 Encycl. Brit. Online (Version 99.1) at Earth Other investigators hold that the lithosphere moves along with the asthenosphere (the relatively plastic layer underlying the lithosphere) and perhaps the top of the mesosphere as well.

2. Atmospheric Physics. The region of the earth's atmosphere above the stratosphere and below the thermosphere, between about 50 and 80 km (30 and 50 miles) in altitude, in which the temperature decreases with height.

ΘΚΠ

the world > the earth > weather and the atmosphere > [noun] > specific regions of

upper air1586

upper atmosphere1586

stratosphere1909

troposphere1909

ionosphere1926

ozone layer1927

ozonosphere1933

spray region1949

mesosphere1950

thermosphere1950

turbosphere1951

magnetosphere1959

Van Allen1959

ozone shield1965

plasmasphere1966

ozone1975

1950 S. Chapman in Jrnl. Atmospheric & Terrestrial Physics 1 121 I propose the name mesosphere for the layer between the top of the stratosphere and the major minimum of temperature existing somewhere below 100 km.

1961 New Scientist 30 Nov. 568/3 Winds at heights of 80 to 100 km in the Earth's atmosphere—in the so-called mesosphere.

1973 Physics Bull. Dec. 727/1 The fifth experiment aboard Concorde concerned emission from the stratosphere and mesosphere arising from the electronic transition between the metastable ¹Δ_g and the ground ³Σ⁻_g states of molecular oxygen.

1994 Sci. News 18 June 397/1 Noctilucent clouds develop in the mesosphere at an altitude of 85 kilometers.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesosphere
释义	mesospheren. Brit. /ˈmɛsə(ʊ)sfɪə/, U.S. /ˈmɛzəˌsfɪ(ə)r/; see also meso- comb. form. Origin: Formed within English, by compounding. Etymons: meso- comb. form, -sphere comb. form. Etymology: < meso- comb. form + -sphere comb. form (see quot. 1939 at sense 1). Compare French mésosphère (20th cent.).In sense 2 apparently an independent formation (see quot. 1950 at sense 2). 1. Geology. Originally: the middle layer of the earth's interior between the core and the crust; the earth's mantle. Later: the layer of the upper mantle immediately below the lithosphere; (also) the layer of the mantle immediately below the asthenosphere. ΘΚΠ the world > the earth > structure of the earth > [noun] > mantle > mesosphere mesosphere1939 1939 H. S. Washington in B. Gutenberg Internal Constit. of Earth v. 92 There would be some advantage in using the terms kentrosphere for the core or nucleus, mesosphere for the intermediate shell and perisphere for the uppermost layer or crust. 1968 Jrnl. Geophysical Res. 73 5856/2 The lithosphere and the mesosphere have relatively high seismic velocities and propagate seismic waves without great attenuation. 1990 P. Kearey & F. J. Vine Global Tectonics viii. 149 The bottom of the plate approaches the mesosphere, which resists descent and throws the leading tip into compression. 1999 Encycl. Brit. Online (Version 99.1) at Earth Other investigators hold that the lithosphere moves along with the asthenosphere (the relatively plastic layer underlying the lithosphere) and perhaps the top of the mesosphere as well. 2. Atmospheric Physics. The region of the earth's atmosphere above the stratosphere and below the thermosphere, between about 50 and 80 km (30 and 50 miles) in altitude, in which the temperature decreases with height. ΘΚΠ the world > the earth > weather and the atmosphere > [noun] > specific regions of upper air1586 upper atmosphere1586 stratosphere1909 troposphere1909 ionosphere1926 ozone layer1927 ozonosphere1933 spray region1949 mesosphere1950 thermosphere1950 turbosphere1951 magnetosphere1959 Van Allen1959 ozone shield1965 plasmasphere1966 ozone1975 1950 S. Chapman in Jrnl. Atmospheric & Terrestrial Physics 1 121 I propose the name mesosphere for the layer between the top of the stratosphere and the major minimum of temperature existing somewhere below 100 km. 1961 New Scientist 30 Nov. 568/3 Winds at heights of 80 to 100 km in the Earth's atmosphere—in the so-called mesosphere. 1973 Physics Bull. Dec. 727/1 The fifth experiment aboard Concorde concerned emission from the stratosphere and mesosphere arising from the electronic transition between the metastable ¹Δ_g and the ground ³Σ⁻_g states of molecular oxygen. 1994 Sci. News 18 June 397/1 Noctilucent clouds develop in the mesosphere at an altitude of 85 kilometers. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1939
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