low-velocityadj.

Brit.

/ˌləʊvᵻˈlɒsᵻti/, U.S.

/ˌloʊvəˈlɑsədi/

Origin: Formed within English, by compounding. Etymons: low adj., velocity n.

Etymology: < low adj. + velocity n.

1. Characterized by a relatively low speed; spec. (a) (of a gun) firing projectiles with a low muzzle velocity; (b) (Geology) designating a layer of rock through which seismic waves pass slowly, esp. an upper layer of the earth's mantle which is inferred to be partially molten.

ΚΠ

1876 R. A. E. Scott Maritime Def. Eng. (Bristol Sel. Pamphlets) ii. 39 Why is that 81-ton gun wanted? Because a ‘low velocity’ 35-ton gun won't do a given work.

1930 E. Rutherford in Proc. Royal Soc. A. 129 221 It is seen that the curve is very nearly symmetrical, but that there is a small ‘tail’ on the low-velocity side.

1940 Philos. Trans. (Royal Soc.) A. 239 64 There may be a layer of rock giving 10,800 ft./sec. at 373 ft. below O.D. underlain by a low-velocity layer which rests on the Palaeozoic.

1950 Science 13 Jan. 30/1 The source of most shallow earthquakes would be in the low velocity layer.

1975 N. Luard Robespierre Serial vi. 45 A low-velocity handgun.

1990 P. Kearey & F. J. Vine Global Tectonics x. 223 The region of contact between convecting mantle and lithosphere lies at the low velocity zone at the top of the asthenosphere.

2008 Sydney Morning Herald (Nexis) 9 Oct. 20 Low-velocity collisions between small- or medium-sized galaxies often produce an increase in star formation.

2. Travelling at a relatively low speed; moving relatively slowly.

ΚΠ

1895 Pall Mall Gaz. 13 Apr. 3/3 Ships are built with mere patches of armour above, and in the vicinity of, the water-line, leaving a large unprotected area above and below exposed to damage by low velocity shells.

1919 Athenæum 11 July 583/2 For high or low velocity German shells, as substitutes for ‘marmite’, the British soldier came out with ‘coalbox’.

1963 A. S. Laughton in M. N. Hill Earth beneath Sea xviii. 456 Fragments of some marine fauna, perhaps pteropods, which would be easily concentrated by low-velocity currents.

2008 Private Eye 26 Dec. 14/2 The target was an iron plate which, when hit by the low velocity lead bullets of the time, gave an audible clang.

This entry has been updated (OED Third Edition, September 2013; most recently modified version published online March 2022).

单词	low-velocity
释义	low-velocityadj. Brit. /ˌləʊvᵻˈlɒsᵻti/, U.S. /ˌloʊvəˈlɑsədi/ Origin: Formed within English, by compounding. Etymons: low adj., velocity n. Etymology: < low adj. + velocity n. 1. Characterized by a relatively low speed; spec. (a) (of a gun) firing projectiles with a low muzzle velocity; (b) (Geology) designating a layer of rock through which seismic waves pass slowly, esp. an upper layer of the earth's mantle which is inferred to be partially molten. ΚΠ 1876 R. A. E. Scott Maritime Def. Eng. (Bristol Sel. Pamphlets) ii. 39 Why is that 81-ton gun wanted? Because a ‘low velocity’ 35-ton gun won't do a given work. 1930 E. Rutherford in Proc. Royal Soc. A. 129 221 It is seen that the curve is very nearly symmetrical, but that there is a small ‘tail’ on the low-velocity side. 1940 Philos. Trans. (Royal Soc.) A. 239 64 There may be a layer of rock giving 10,800 ft./sec. at 373 ft. below O.D. underlain by a low-velocity layer which rests on the Palaeozoic. 1950 Science 13 Jan. 30/1 The source of most shallow earthquakes would be in the low velocity layer. 1975 N. Luard Robespierre Serial vi. 45 A low-velocity handgun. 1990 P. Kearey & F. J. Vine Global Tectonics x. 223 The region of contact between convecting mantle and lithosphere lies at the low velocity zone at the top of the asthenosphere. 2008 Sydney Morning Herald (Nexis) 9 Oct. 20 Low-velocity collisions between small- or medium-sized galaxies often produce an increase in star formation. 2. Travelling at a relatively low speed; moving relatively slowly. ΚΠ 1895 Pall Mall Gaz. 13 Apr. 3/3 Ships are built with mere patches of armour above, and in the vicinity of, the water-line, leaving a large unprotected area above and below exposed to damage by low velocity shells. 1919 Athenæum 11 July 583/2 For high or low velocity German shells, as substitutes for ‘marmite’, the British soldier came out with ‘coalbox’. 1963 A. S. Laughton in M. N. Hill Earth beneath Sea xviii. 456 Fragments of some marine fauna, perhaps pteropods, which would be easily concentrated by low-velocity currents. 2008 Private Eye 26 Dec. 14/2 The target was an iron plate which, when hit by the low velocity lead bullets of the time, gave an audible clang. This entry has been updated (OED Third Edition, September 2013; most recently modified version published online March 2022). < adj.1876
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