lock-onn.

Brit.

/ˈlɒkɒn/, U.S.

/ˈlɑkˌɑn/

Origin: Formed within English, by conversion. Etymons: lock v.¹ 8a(a); to lock on to —— at lock v.¹ Phrasal verbs 2.

Etymology: Partly (in sense 1) < to lock on (see lock v.¹ 8a(a)), and partly (in sense 2) < lo lock on (in to lock on to —— at lock v.¹ Phrasal verbs 2).

a. A device or piece of equipment which can be locked or clipped on to something.

ΘΚΠ

the world > relative properties > wholeness > mutual relation of parts to whole > fact or action of being joined or joining > fact or action of being connected or connecting > [noun] > rigid physical connection

lock-on1940

1940 Railroad Mag. Apr. 116/1 Lionel O gage track, hand and r.c. switches, crossings, special sections, lock-ons, loco 259E.

1951 Billboard 3 Feb. 78/4 The electrical components are accessible thru the rear of the phonograph and are equipped with detachable lock-ons which make it possible to remove and repair all major units with little effort.

2014 Free Lance-Star (Fredericksburg, Va.) (Nexis) 31 July Tree stands, whether ladders, ‘lock-ons’ or climbers, are favored deer-hunting tools.

b. The establishment of a physical connection between machines or vehicles; docking; the capability for establishing such a connection. Frequently (and earliest) in attributive use.

ΚΠ

1967 Sunday Times 23 Apr. 8 Back at the surface, a lock-on device enables divers to transfer to a larger chamber on board, releasing the sub to return to work with a fresh diving team.

1968 New Scientist 6 June 509/1 As it will need to contend with the underwater currents playing around the submarine, it will need extremely sensitive means of controlling its position just before lock-on.

1969 Jane's Freight Containers 1968–9 574/2 The top lift cradle has..power-guided lock-on at each of the four corners. Safe lock-on indicators are monitored by the operator in the cab.

1985 Flight Internat. 3 Aug. 24/3 The head incorporates the lock-on jack and associated gimbals, the lock-on jack positioning system, and a docking cradle.

2. The action of a radar device, weapon, etc., in locating a target and then automatically tracking it; the state of having done this. Cf. to lock on to —— 1 at lock v.¹ Phrasal verbs 2.

ΘΚΠ

the mind > attention and judgement > discovery > instrument for detection > [noun] > radar system > location of target

lock-on1946

acquisition1947

1946 L. A. DuBridge et al. Radar & Communications i. 22 Flexible turret guns will be required, together with more complicated radar of the automatic-tracking or ‘lock-on’ variety.

1960 Aeroplane 4 Mar. 278/1 The Bloodhound target radar lock-on technique will be demonstrated and a model of the missile is to be ‘fired’.

1967 Sci. Amer. May 83 (advt.) When an air-to-air training missile ‘sees’ its target, a new microminiaturized signal amplifier..tells the pilot that lock-on has been achieved.

2012 R. Curley War on Land ix. 155/1 With infrared antiaircraft missiles, a successful lock-on is indicated by an audible tone in the operator's headset.

3. An act of protest in which demonstrators lock or chain themselves to trees, buildings, etc.; (as a mass noun) the use of such acts. Also: something to which protesters can lock themselves.Earliest in attributive use.

ΚΠ

1994 Independent 4 Oct. (London section) 4/6 There are..‘lock on’ points in the road where protesters will chain themselves.

1996 G. McKay Senseless Acts Beauty v. 154 Barricades, bunkers, towers, nets, tree houses, lock-ons, the tunnel..all energy stored and stockpiled for that final moment.

1997 Daily Tel. 21 May 4/5 A number have attached themselves to ‘lock-ons’—metal spikes set into concrete.

2007 Ecologist July 16/2 Today Greenpeace has a network of trained activists willing to undertake illegal non-violent direct actions including blockades, banner drops, lock-ons and occupations.

2014 Manch. Evening News (Nexis) 20 Jan. 7 Four people were arrested after anti-fracking protesters chained themselves to pumps at a petrol station. The unknown activists who took part in the ‘lock on’ are believed to be part of a wider campaign.

This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022).

单词	lock-on
释义	lock-onn. Brit. /ˈlɒkɒn/, U.S. /ˈlɑkˌɑn/ Origin: Formed within English, by conversion. Etymons: lock v.¹ 8a(a); to lock on to —— at lock v.¹ Phrasal verbs 2. Etymology: Partly (in sense 1) < to lock on (see lock v.¹ 8a(a)), and partly (in sense 2) < lo lock on (in to lock on to —— at lock v.¹ Phrasal verbs 2). 1. a. A device or piece of equipment which can be locked or clipped on to something. ΘΚΠ the world > relative properties > wholeness > mutual relation of parts to whole > fact or action of being joined or joining > fact or action of being connected or connecting > [noun] > rigid physical connection lock-on1940 1940 Railroad Mag. Apr. 116/1 Lionel O gage track, hand and r.c. switches, crossings, special sections, lock-ons, loco 259E. 1951 Billboard 3 Feb. 78/4 The electrical components are accessible thru the rear of the phonograph and are equipped with detachable lock-ons which make it possible to remove and repair all major units with little effort. 2014 Free Lance-Star (Fredericksburg, Va.) (Nexis) 31 July Tree stands, whether ladders, ‘lock-ons’ or climbers, are favored deer-hunting tools. b. The establishment of a physical connection between machines or vehicles; docking; the capability for establishing such a connection. Frequently (and earliest) in attributive use. ΚΠ 1967 Sunday Times 23 Apr. 8 Back at the surface, a lock-on device enables divers to transfer to a larger chamber on board, releasing the sub to return to work with a fresh diving team. 1968 New Scientist 6 June 509/1 As it will need to contend with the underwater currents playing around the submarine, it will need extremely sensitive means of controlling its position just before lock-on. 1969 Jane's Freight Containers 1968–9 574/2 The top lift cradle has..power-guided lock-on at each of the four corners. Safe lock-on indicators are monitored by the operator in the cab. 1985 Flight Internat. 3 Aug. 24/3 The head incorporates the lock-on jack and associated gimbals, the lock-on jack positioning system, and a docking cradle. 2. The action of a radar device, weapon, etc., in locating a target and then automatically tracking it; the state of having done this. Cf. to lock on to —— 1 at lock v.¹ Phrasal verbs 2. ΘΚΠ the mind > attention and judgement > discovery > instrument for detection > [noun] > radar system > location of target lock-on1946 acquisition1947 1946 L. A. DuBridge et al. Radar & Communications i. 22 Flexible turret guns will be required, together with more complicated radar of the automatic-tracking or ‘lock-on’ variety. 1960 Aeroplane 4 Mar. 278/1 The Bloodhound target radar lock-on technique will be demonstrated and a model of the missile is to be ‘fired’. 1967 Sci. Amer. May 83 (advt.) When an air-to-air training missile ‘sees’ its target, a new microminiaturized signal amplifier..tells the pilot that lock-on has been achieved. 2012 R. Curley War on Land ix. 155/1 With infrared antiaircraft missiles, a successful lock-on is indicated by an audible tone in the operator's headset. 3. An act of protest in which demonstrators lock or chain themselves to trees, buildings, etc.; (as a mass noun) the use of such acts. Also: something to which protesters can lock themselves.Earliest in attributive use. ΚΠ 1994 Independent 4 Oct. (London section) 4/6 There are..‘lock on’ points in the road where protesters will chain themselves. 1996 G. McKay Senseless Acts Beauty v. 154 Barricades, bunkers, towers, nets, tree houses, lock-ons, the tunnel..all energy stored and stockpiled for that final moment. 1997 Daily Tel. 21 May 4/5 A number have attached themselves to ‘lock-ons’—metal spikes set into concrete. 2007 Ecologist July 16/2 Today Greenpeace has a network of trained activists willing to undertake illegal non-violent direct actions including blockades, banner drops, lock-ons and occupations. 2014 Manch. Evening News (Nexis) 20 Jan. 7 Four people were arrested after anti-fracking protesters chained themselves to pumps at a petrol station. The unknown activists who took part in the ‘lock on’ are believed to be part of a wider campaign. This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022). < n.1940
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