deperm, v.
(diːˈpɜːm)
[f. de- II. 2 + permanent magnetism.]
trans. To demagnetize (a ship). Hence deˈperm n., deˈperming ppl. a. and vbl. n. Cf. degauss v.
| 1946 Jrnl. Inst. Electr. Engineers XCIII. i. 508/1 The process known as ‘deperming’ has been developed to remove or compensate the permanent longitudinal and athwart-ship magnetisms. Ibid., Deperming processes. Ibid. 514/1 The sequence of the flashes is of major importance since the stability of the deperm is governed by it. Ibid. 514/2 The model was then depermed. 1954 Jane's Fighting Ships 1954–55 59 Converted to special duty as mobile wiping/deperming units. |