delta ray

n. An electron ejected from matter by ionizing radiation.

n (General Physics) a particle, esp an electron, ejected from matter by ionizing radiation

del′ta ray`

n. a low-energy electron emitted by a substance after bombardment by higher-energy particles, as alpha particles. [1905–10]

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Noun

delta ray - an electron ejected from matter by ionizing radiationelectron, negatron - an elementary particle with negative charge

EncyclopediaSeeDelta electrons

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