| 释义 |
Helicon|ˈhɛlɪkɒn|
Also (senses 2, 3) helicon.
[L. Helicōn = Gr. Ἑλικών. In sense 2 b there seems to be association with helix.]
1. Name of a mountain in Bœotia, sacred to the Muses, in which rose the fountains of Aganippe and Hippocrene; by 16th and 17th c. writers often confused with these. Hence used allusively in reference to poetic inspiration.
a1529Skelton Agst. Garnesche 99, I gaue hym drynke of the sugryd welle Of Eliconys waters crystallyne. 1567Harman Caveat (1869) 28 Eloquence haue I none; I neuer was acquaynted with the muses; I neuer tasted of Helycon. 1579Spenser Sheph. Cal. Apr. 42 You Virgins, that on Parnasse dwell, Whence floweth Helicon, the learned well. 1600title England's Helicon [ed. 2..or the Muses Harmony.] 1631Milton Epit. M'chess Winchester 56 Here be tears of perfect moan Wept for thee in Helicon. 1651Randolph, etc. Hey for Honesty v. Wks. (1875) 481 Poor shallow scoundrels..that never drank any Helicon above a penny a quart. 1892Bookman Nov. 57/1 Any question of his precise place in England's Helicon.
2. a. An ancient acoustical instrument consisting of strings stretched over a resonance-box and capable of being adjusted to different lengths. b. A large brass wind-instrument of a spiral form.
1875Knight Dict. Mech., Helicon, a form of wind-instrument of metal, resembling a French-horn, but having keys and valves. 1961J. Richardson tr. ‘Ilf’ & ‘Petrov's’ Twelve Chairs (1965) 257 The most powerful machine in the band was the helicon, encircled three times by a brass serpent.
3. In various techn. senses (see quots.).
[1961P. Aigrain in Proc. Internat. Conf. Semiconductor Physics (Prague 1960) 225 Le temps d'atténuation des ondes basse fréquence..que nous proposons d'appeler ‘hélicon’.] 1962Electronics 9 Feb. 26/1 He'll talk about active homogenous semiconductor developments including the Ecole [Normale Supérieure, Paris]'s helicon. Defined as devices without p-n junctions that amplify or oscillate by an action similar to that of a traveling⁓wave tube, these devices are expected to have a bright future. 1966New Scientist 20 Jan. 155/3 The type of plasma-wave currently exciting most attention is called a helicon. It is transverse and circularly polarized..and moves along the direction of a magnetic field. 1968Ibid. 17 Oct. 13/2 One might also single out for their promise the intriguing ‘helicon waves’ which result from the interaction between electromagnetic radiation and a ‘gas’ of electrons within a solid. |
