radioactivity
Từ điển Collocation
radioactivity noun
QUANT. level The soil contains 30 times the acceptable level of radioactivity.
VERB + RADIOACTIVITY discharge, produce, release | measure, monitor
RADIOACTIVITY + VERB be present | escape, leak | contaminate sth The site was found to be contaminated by radioactivity.
RADIOACTIVITY + NOUN levels
Từ điển WordNet
n.
- the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay; radiation
English Synonym and Antonym Dictionary
radioactivities
syn.: radiation