The emission of energy of any kind in the form of rays or waves (esp. electromagnetic waves), or subatomic particles.
| 单词 | θ76697 |
| 释义 | the world > matter > physics > science of sound > sound-waves > [noun] > emission of (3) radiation1934 The emission of energy of any kind in the form of rays or waves (esp. electromagnetic waves), or subatomic particles. Subcategories:— that which emits (1) — device emitting (1) |
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