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单词
radioactivity
释义
radioactivity
noun
uncountable
chemistry
UK
/
ˌreɪdiəʊækˈtɪvəti
/
DEFINITIONS
2
1
a form of energy that is produced by a
radioactive
substance and is harmful in large amounts
Synonyms and related words
Radioactivity and radiation
alpha particle
atomic
becquerel
2
the ability that some substances have to produce energy in the form of
radiation
Synonyms and related words
Radioactivity and radiation
alpha particle
atomic
becquerel
radioactivity
noun
uncountable
chemistry
US
/
ˌreɪdioʊækˈtɪvəti
/
DEFINITIONS
2
1
a form of energy that is produced by a
radioactive
substance and is harmful in large amounts
Synonyms and related words
Radioactivity and radiation
alpha particle
atomic
becquerel
2
the ability that some substances have to produce energy in the form of
radiation
Synonyms and related words
Radioactivity and radiation
alpha particle
atomic
becquerel
随便看
on neutral ground/territory
on no account/not on any account
ono
on-off
on offer
onomastics
onomatopoeia
onomatopoeic
on paper
on point
on prescription
on purpose
on-ramp
on request
onrush
onrushing
on sale
on sale or return
on-screen
on second thought
on second thoughts
onset
on shore
onshore
on show
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更新时间：2025/11/22 13:25:18