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Meaning of delta ray | Babel Free

Noun CEFR B2

Definitions

An electron ejected by recoil when a rapidly moving alpha particle or other charged particle passes through matter.
A secondary ionizing particle ejected by recoil when a primary particle passes through matter.

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

delta strain Delta Ursae Majoris Delta variant delta wing delta-sigma converter delta-v