| 释义 |
-tron, suffix Physics.|trɒn|
The ending of electron2 (but cf. Gr. -τρον instrumental suffix), used: a. in the names of some kinds of thermionic valves and other electron tubes, as kenotron (1915), pliotron (1915), ignitron (1933); b. in the names of a few sub-atomic particles, as positron (1933), negatron (1934), mesotron (1938): cf. -on1; c. in the names of devices and machines, spec. particle accelerators, as cyclotron (1935), betatron (1941), phantastron (1943), levitron (1960).
1939Nature 8 Apr. 602/1 -tron should be restricted to signify either an instrument or a particle, but not both{ddd}-on taken by itself..seems the most natural ending for a particle. 1949Ibid. 13 Aug. 263/2 The Amsterdam conference [of the International Union of Physics] attempted to dispose of the curious modern theory that the ancient Greek termination for a fundamental particle was ‘-tron’. It blessed the word ‘meson’ as against its rivals. |