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VocabJLPT N1
radioactivity
Noun

Definitions

  1. 1. radioactivity
  2. 2. radiation
  3. 3. radioactive material
Refers to the energy released by the decay of unstable atomic nuclei, which can be harmful to living things. It is a key word in discussions about nuclear power, nuclear accidents, and related safety concerns.

Example sentences

Sentence 1

It is our company's policy to ensure transparency in radioactivity testing.

Sentence 2

Maintenance of radioactivity-related records was flagged during the audit.

Sentence 3

I've got a bad feeling — maybe I've been reading too much radioactivity news.

Sentence 4

We will submit the calibration certificate for our radioactivity measuring instruments.

Sentence 5

Is it true they're holding a radioactivity testing event in that area?