| 释义 |
galvanic, a.|gælˈvænɪk|
[f. galvan-ism + -ic. Cf. F. galvanique.]
a. Of, pertaining to, or produced by galvinism. galvanic battery, an apparatus constructed for the production of galvanic electricity. galvanic belt, a belt containing a galvanic apparatus to be worn round the body for therapeutic purposes. galvanic electricity = galvanism. galvanic pile, a ‘pile’ (see quot. 1802) for the production of galvanic electricity. galvanic skin response (or reflex), the rapid variation in the electrical conductivity of the skin as a measure of the effect of an emotional stimulus on autonomic activity.
1797Monthly Mag. III. 348 The acrid humour which the Galvanic irritation would produce. 1801Phil. Mag. X. 93 He [sc. Cruickshank] employs a galvanic battery of his own invention. 1802Med. Jrnl. VIII. 524 The Galvanic pile of Volta..consisted of thirty pieces of silver, and as many of zinc..with pieces of cloth that were dipped in a saturated solution of common salt. Ibid. 553 The Galvanic belt is an electrical apparatus, constantly in action as long as it is worn. 1803Lamb Lett. (1888) I. 206 'Tis a gentle ghost, and in this Galvanic age it may have a chance. 1856Emerson Eng. Traits, Race Wks. (Bohn) II. 23 Perhaps the Ocean serves as a galvanic battery to distribute acids at one pole, and alkalies at the other. 1869W. P. Mackay Grace & Truth (1875) 238 The movements in Christian service of an unconverted man are the galvanic movements of a corpse. 1927C. W. Darrow in Jrnl. Exper. Psychol. X. 197 Employing the term galvanic skin reflex (galvanische Hautreflex) because it is less misleading than the term psychogalvanic reflex. 1962Listener 19 Apr. 691/2 With special instruments you can measure electrical changes in the skin when a person is emotionally upset or aroused, changes which we call the galvanic skin response, and which are made use of in the so-called ‘lie detector’.
b. fig. with allusion to the effects of the application of galvanism.
1807Opie in Lect. Paint. iii. (1848) 292 This is mere galvanic encouragement; it may excite a few convulsive twitches, but will never inspire the arts with life and efficient activity. 1831[see galvanize v. 1]. 1852Hawthorne Mosses, Feathertop, Purposing a smile of courtesy, he had deformed his face with a sort of galvanic grin. 1865Dickens Mut. Fr. i. x, Drops asleep, and has galvanic starts all over him.
Hence galˈvanical a., galˈvanically adv.
1840Whewell Philos. Induct. Sc. I. 263 The phenomena of magnets, of electrical bodies, of galvanical apparatus, seem to form obvious material for such sciences. 1848Lytton Caxtons ii. vii. xxxiii, Galvanically I brace up energies half palsied by disuse. 1869Eng. Mech. 19 Nov. 229/3 Copper..tinned (galvanically). 1890Boldrewood Col. Reformer (1891) 103 The..animal bounded galvanically upward. |