power-downn.

Brit.

/ˈpaʊədaʊn/, U.S.

/ˈpaʊ(ə)rˌdaʊn/

Origin: Formed within English, by conversion. Etymon: to power down at power v. Phrasal verbs.

Etymology: < to power down at power v. Phrasal verbs.

The loss or switching off of power to an electrical device; an instance of this. Also: the period during which a device is without power.

ΚΠ

1965 Independent Press-Telegram (Long Beach, Calif.) 22 Aug. a6/7 The oxygen supply to the electric-power fuel cells forced a ‘power down’ in the electric circuits aboard.

1977 Aviation Week 31 Jan. 157/3 This unit is for general application in aircraft, and will provide a solid-state, high-speed read/write memory that will not be erased by a power-down.

1986 Which Computer? Oct. 74/3 As well as keeping time during power down, the battery-backed RAM also retains default parameters.

1997 Electronic Engin. Times 21 July 56/4 The reset signal is valid less than 5 μs after the sense voltage is reached on power-down or brownout.

2004 ECN (Nexis) 15 May The devices also support flexible power-down and wake-up modes.

This is a new entry (OED Third Edition, December 2006; most recently modified version published online March 2022).

单词	power-down
释义	power-downn. Brit. /ˈpaʊədaʊn/, U.S. /ˈpaʊ(ə)rˌdaʊn/ Origin: Formed within English, by conversion. Etymon: to power down at power v. Phrasal verbs. Etymology: < to power down at power v. Phrasal verbs. The loss or switching off of power to an electrical device; an instance of this. Also: the period during which a device is without power. ΚΠ 1965 Independent Press-Telegram (Long Beach, Calif.) 22 Aug. a6/7 The oxygen supply to the electric-power fuel cells forced a ‘power down’ in the electric circuits aboard. 1977 Aviation Week 31 Jan. 157/3 This unit is for general application in aircraft, and will provide a solid-state, high-speed read/write memory that will not be erased by a power-down. 1986 Which Computer? Oct. 74/3 As well as keeping time during power down, the battery-backed RAM also retains default parameters. 1997 Electronic Engin. Times 21 July 56/4 The reset signal is valid less than 5 μs after the sense voltage is reached on power-down or brownout. 2004 ECN (Nexis) 15 May The devices also support flexible power-down and wake-up modes. This is a new entry (OED Third Edition, December 2006; most recently modified version published online March 2022). < n.1965
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