retro-enginen.

Brit.

/ˈrɛtrəʊˌɛn(d)ʒ(ᵻ)n/, U.S.

/ˈrɛtroʊˌɛndʒ(ə)n/

Origin: Formed within English, by derivation. Etymons: retro- prefix, engine n.

Etymology: < retro- prefix + engine n. Compare earlier retro-rocket n. 2.

Astronautics.

= retro-rocket n. 2.

ΘΚΠ

society > travel > air or space travel > a means of conveyance through the air > spacecraft > rocket > [noun] > types of rocket engine

retro-rocket1951

sustainer1951

vernier1958

retro-engine1960

posigrade rocket1961

retro1961

thruster1962

strap-on1966

1960 Chicago Tribune 16 Apr. i. 9/1 These retro engines will exert the necessary force to bring the capsule and its passenger back after only one orbit if necessary.

1977 Sci. Amer. Nov. 52/1 With the help of its retroengines and parachute it dropped to the surface of Mars.

1986 Icarus 67 39/1 The soil erosion processes produced by the retroengine exhausts at touch-down.

2004 D. Scott & A. Leonov Two Sides of Moon iv. 112 Five minutes before our retro-engine was due to start, I checked our instruments.

This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).

单词	retro-engine
释义	retro-enginen. Brit. /ˈrɛtrəʊˌɛn(d)ʒ(ᵻ)n/, U.S. /ˈrɛtroʊˌɛndʒ(ə)n/ Origin: Formed within English, by derivation. Etymons: retro- prefix, engine n. Etymology: < retro- prefix + engine n. Compare earlier retro-rocket n. 2. Astronautics. = retro-rocket n. 2. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > spacecraft > rocket > [noun] > types of rocket engine retro-rocket1951 sustainer1951 vernier1958 retro-engine1960 posigrade rocket1961 retro1961 thruster1962 strap-on1966 1960 Chicago Tribune 16 Apr. i. 9/1 These retro engines will exert the necessary force to bring the capsule and its passenger back after only one orbit if necessary. 1977 Sci. Amer. Nov. 52/1 With the help of its retroengines and parachute it dropped to the surface of Mars. 1986 Icarus 67 39/1 The soil erosion processes produced by the retroengine exhausts at touch-down. 2004 D. Scott & A. Leonov Two Sides of Moon iv. 112 Five minutes before our retro-engine was due to start, I checked our instruments. This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022). < n.1960
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