self-inductionn.

Brit.

/ˌsɛlfᵻnˈdʌkʃn/, U.S.

/ˌsɛlfᵻnˈdəkʃ(ə)n/

Origin: Formed within English, by derivation. Etymons: self- prefix, induction n.

Etymology: < self- prefix + induction n. With sense 2 compare self-inductive adj.

1. The action of inducing a condition, state, process, etc., in oneself. Cf. self-induced adj. 1.In quot. 1831: induction or introduction of itself.

ΚΠ

1831 United Service Jrnl. & Naval & Mil. Mag. iii. 263 At the expiration of two months from the first day of self-induction, your new blue frock has become a very ‘scissa lacerna’!

1845 J. S. Grimes Etherology i. 38 Self-induction is the induction of [phrenological] organs which is produced by other organs in the same individual.

1847 L. R. Sunderland Pathetism (new ed.) xv. 98 The self-induction of the trance, without the supervision of an operator, or a friend, is attended with danger.

1896 Trans. Edinb. Obstetr. Soc. 21 214 There was no self-induction of the abortion in any of these four cases.

1941 Mil. Surgeon 89 137/1 There is another class of deceptions,..frequent amongst experienced soldiers, whereby they seek to attain admission to hospital... Examples are:..simulation of hoarseness, self-induction of vomiting, and many functional derangements of the nervous system of the body.

1996 Seizure 5 133/1 Methods of self induction [of epileptic seizures] included: looking at reflected light; fixating on an object; inducing tension; overbreathing, and screaming.

2014 R. Rebouché in R. J. Cook et al. Abortion Law in Transnational Perspective v. 114 They first reviewed the methods by which women procured abortions, such as through traditional healers, providers working outside of law, or self-induction using medicines.

2. The induction of a potential difference in an electrical conductor as a result of a change in the current flowing in it (contrasted with mutual induction n. at mutual adj. 7). Also occasionally: = self-inductance n.The potential gradient due to self-induction always opposes the change in current.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > self-inductance

self-induction1839

autoinduction1885

self-inductance1890

1839 J. F. Daniell Introd. Study Chem. Philos. 495 In the voltaic circuit, the self-induction of the conducting wire generates a current which pervades the cells of the battery itself, as well as its own substance.

1864 J. C. Maxwell in Proc. Royal Soc. 1863–4 13 534 A method is..given by which the coefficient of self-induction of any circuit can be determined by means of Wheatstone's electric balance.

1865 J. C. Maxwell in Philos. Trans. (Royal Soc.) 155 475 Hence the effect..is to increase the apparent resistance and diminish the apparent self-induction of the circuit.

1886 Science 14 May 443/1 The electromotive force of self-induction currents.

1915 Telephony 2 Oct. 43/2 The effect of self induction in any alternating current circuit is always in opposition to the fluctuations of the current.

1958 E. U. Condon & H. Odishaw Handbk. Physics iv. i. 17/1 If the current in the circuit increases for any reason, the flux through the circuit must also increase, and this gives rise to an emf of self-induction which acts to oppose the increase in the current by Lenz's law.

2012 N.Z. Herald (Nexis) 7 May The poor chap convulses with the shock,..and 300 students (one in particular) will never forget the principle of electromagnetic self-induction!

This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).

单词	self-induction
释义	self-inductionn. Brit. /ˌsɛlfᵻnˈdʌkʃn/, U.S. /ˌsɛlfᵻnˈdəkʃ(ə)n/ Origin: Formed within English, by derivation. Etymons: self- prefix, induction n. Etymology: < self- prefix + induction n. With sense 2 compare self-inductive adj. 1. The action of inducing a condition, state, process, etc., in oneself. Cf. self-induced adj. 1.In quot. 1831: induction or introduction of itself. ΚΠ 1831 United Service Jrnl. & Naval & Mil. Mag. iii. 263 At the expiration of two months from the first day of self-induction, your new blue frock has become a very ‘scissa lacerna’! 1845 J. S. Grimes Etherology i. 38 Self-induction is the induction of [phrenological] organs which is produced by other organs in the same individual. 1847 L. R. Sunderland Pathetism (new ed.) xv. 98 The self-induction of the trance, without the supervision of an operator, or a friend, is attended with danger. 1896 Trans. Edinb. Obstetr. Soc. 21 214 There was no self-induction of the abortion in any of these four cases. 1941 Mil. Surgeon 89 137/1 There is another class of deceptions,..frequent amongst experienced soldiers, whereby they seek to attain admission to hospital... Examples are:..simulation of hoarseness, self-induction of vomiting, and many functional derangements of the nervous system of the body. 1996 Seizure 5 133/1 Methods of self induction [of epileptic seizures] included: looking at reflected light; fixating on an object; inducing tension; overbreathing, and screaming. 2014 R. Rebouché in R. J. Cook et al. Abortion Law in Transnational Perspective v. 114 They first reviewed the methods by which women procured abortions, such as through traditional healers, providers working outside of law, or self-induction using medicines. 2. The induction of a potential difference in an electrical conductor as a result of a change in the current flowing in it (contrasted with mutual induction n. at mutual adj. 7). Also occasionally: = self-inductance n.The potential gradient due to self-induction always opposes the change in current. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > self-inductance self-induction1839 autoinduction1885 self-inductance1890 1839 J. F. Daniell Introd. Study Chem. Philos. 495 In the voltaic circuit, the self-induction of the conducting wire generates a current which pervades the cells of the battery itself, as well as its own substance. 1864 J. C. Maxwell in Proc. Royal Soc. 1863–4 13 534 A method is..given by which the coefficient of self-induction of any circuit can be determined by means of Wheatstone's electric balance. 1865 J. C. Maxwell in Philos. Trans. (Royal Soc.) 155 475 Hence the effect..is to increase the apparent resistance and diminish the apparent self-induction of the circuit. 1886 Science 14 May 443/1 The electromotive force of self-induction currents. 1915 Telephony 2 Oct. 43/2 The effect of self induction in any alternating current circuit is always in opposition to the fluctuations of the current. 1958 E. U. Condon & H. Odishaw Handbk. Physics iv. i. 17/1 If the current in the circuit increases for any reason, the flux through the circuit must also increase, and this gives rise to an emf of self-induction which acts to oppose the increase in the current by Lenz's law. 2012 N.Z. Herald (Nexis) 7 May The poor chap convulses with the shock,..and 300 students (one in particular) will never forget the principle of electromagnetic self-induction! This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022). < n.1831
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