ionospheren.

Brit.

/ʌɪˈɒnəsfɪə/, U.S.

/aɪˈɑnəˌsfɪ(ə)r/

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

Etymology: < iono- comb. form + -sphere comb. form, after e.g. stratosphere n., troposphere n.Coined by R. Watson-Watt (compare quots. 1926, 1929).

Atmospheric Physics.

A region of the outer atmosphere of the earth, beginning at a height of 50–80 km. (30–50 miles), which contains many ions and free electrons and is capable of reflecting radio waves; a corresponding region above another planet.The ionosphere is divided conceptually into a number of layers (cf. D-layer at D n. 4c, E-layer at E n.¹ 6h, F-layer at F n. 4).

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

1926 R. Watson-Watt Let. 8 Nov. in Nature (1969) 13 Dec. 1096/1 We have in quite recent years seen the universal adoption of the term ‘stratosphere’..and..the companion term ‘troposphere’... The term ‘ionosphere’, for the region in which the main characteristic is large scale ionisation with considerable mean free paths, appears appropriate as an addition to this series.

1929 R. Watson-Watt in Q. Jrnl. Royal Meteorol. Soc. 55 278 I have suggested the name ionosphere to make the systematic group troposphere, stratosphere, ionosphere, but meanwhile the term ‘upper conducting layers’ seems to hold the field.

1934 Times 23 Feb. 20/2 Beyond lies the ionosphere, and of the layers in this we learn from the paths of radio-waves.

1959 R. D. Davies & H. P. Palmer Radio Stud. Universe iv. 66 This is difficult to explain if Jupiter is surrounded by an ionosphere similar to the Earth's.

1979 D. Adams Hitch Hiker's Guide to Galaxy iii. 23 Something was moving quietly through the ionosphere many miles above the planet.

1988 V. Capel Audio & Hi-Fi Engineer's Pocket Bk. 122 At very high frequencies (v.h.f.) a sky wave passes through the ionosphere and is lost in space.

2006 Wired May 38/2 Between a storm and the electrically charged ionosphere above, lightning can spark massive, long-lasting tendrils of colored light.

This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).

单词	ionosphere
释义	ionospheren. Brit. /ʌɪˈɒnəsfɪə/, U.S. /aɪˈɑnəˌsfɪ(ə)r/ Origin: Formed within English, by compounding. Etymons: iono- comb. form, -sphere comb. form. Etymology: < iono- comb. form + -sphere comb. form, after e.g. stratosphere n., troposphere n.Coined by R. Watson-Watt (compare quots. 1926, 1929). Atmospheric Physics. A region of the outer atmosphere of the earth, beginning at a height of 50–80 km. (30–50 miles), which contains many ions and free electrons and is capable of reflecting radio waves; a corresponding region above another planet.The ionosphere is divided conceptually into a number of layers (cf. D-layer at D n. 4c, E-layer at E n.¹ 6h, F-layer at F n. 4). 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 1926 R. Watson-Watt Let. 8 Nov. in Nature (1969) 13 Dec. 1096/1 We have in quite recent years seen the universal adoption of the term ‘stratosphere’..and..the companion term ‘troposphere’... The term ‘ionosphere’, for the region in which the main characteristic is large scale ionisation with considerable mean free paths, appears appropriate as an addition to this series. 1929 R. Watson-Watt in Q. Jrnl. Royal Meteorol. Soc. 55 278 I have suggested the name ionosphere to make the systematic group troposphere, stratosphere, ionosphere, but meanwhile the term ‘upper conducting layers’ seems to hold the field. 1934 Times 23 Feb. 20/2 Beyond lies the ionosphere, and of the layers in this we learn from the paths of radio-waves. 1959 R. D. Davies & H. P. Palmer Radio Stud. Universe iv. 66 This is difficult to explain if Jupiter is surrounded by an ionosphere similar to the Earth's. 1979 D. Adams Hitch Hiker's Guide to Galaxy iii. 23 Something was moving quietly through the ionosphere many miles above the planet. 1988 V. Capel Audio & Hi-Fi Engineer's Pocket Bk. 122 At very high frequencies (v.h.f.) a sky wave passes through the ionosphere and is lost in space. 2006 Wired May 38/2 Between a storm and the electrically charged ionosphere above, lightning can spark massive, long-lasting tendrils of colored light. This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.1926
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