transonicadj.

Brit.

/trɑːnˈsɒnɪk/,

/tranˈsɒnɪk/, U.S.

/træn(t)ˈsɑnɪk/

Forms: Also trans-sonic.

Etymology: < trans- prefix 3 + sonic adj., after supersonic, ultrasonic.

Pertaining to, involving, capable of, or designating speeds close to that of sound, at which some of the flow round a body is supersonic and some subsonic and there are characteristic changes in the behaviour of an aircraft.

ΘΚΠ

the world > movement > rate of motion > [adjective] > greater or less than speed of sound

supersonic1932

subsonic1936

infrasonic1942

ultrasonic1942

hypersonic1946

transonic1946

1946 Britannica Bk. of Year (U.S.) 833/2 Trans-sonic, speeds ranging from 550 to 760 m.p.h.

1946 Jrnl. Royal Aeronaut. Soc. 50 436/1 I propose to say a little about ‘supersonic’ aerodynamics first, and then to return to the so-called ‘transonic’ region, which presents the most difficult problem of all.

1948 ‘N. Shute’ No Highway xii. 294 The forces on the structure [of an aircraft] were still very much a matter of guesswork in the trans-sonic range.

1966 New Scientist 20 Jan. 135/1 A critical phase is reached as the aircraft goes ‘transonic’; that is, as it accelerates through the speed band from just below to just above the speed of sound.

1977 Jrnl. Royal Soc. Arts 125 347/1 Notable examples [of development] since World War II have been jet propulsion, transonic and supersonic aerodynamics, [etc.].

This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022).

单词	transonic
释义	transonicadj. Brit. /trɑːnˈsɒnɪk/, /tranˈsɒnɪk/, U.S. /træn(t)ˈsɑnɪk/ Forms: Also trans-sonic. Etymology: < trans- prefix 3 + sonic adj., after supersonic, ultrasonic. Pertaining to, involving, capable of, or designating speeds close to that of sound, at which some of the flow round a body is supersonic and some subsonic and there are characteristic changes in the behaviour of an aircraft. ΘΚΠ the world > movement > rate of motion > [adjective] > greater or less than speed of sound supersonic1932 subsonic1936 infrasonic1942 ultrasonic1942 hypersonic1946 transonic1946 1946 Britannica Bk. of Year (U.S.) 833/2 Trans-sonic, speeds ranging from 550 to 760 m.p.h. 1946 Jrnl. Royal Aeronaut. Soc. 50 436/1 I propose to say a little about ‘supersonic’ aerodynamics first, and then to return to the so-called ‘transonic’ region, which presents the most difficult problem of all. 1948 ‘N. Shute’ No Highway xii. 294 The forces on the structure [of an aircraft] were still very much a matter of guesswork in the trans-sonic range. 1966 New Scientist 20 Jan. 135/1 A critical phase is reached as the aircraft goes ‘transonic’; that is, as it accelerates through the speed band from just below to just above the speed of sound. 1977 Jrnl. Royal Soc. Arts 125 347/1 Notable examples [of development] since World War II have been jet propulsion, transonic and supersonic aerodynamics, [etc.]. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022). < adj.1946
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