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RADIOACTIVITY
\ɹˌe͡ɪdɪə͡ʊaktˈɪvɪti], \ɹˌeɪdɪəʊaktˈɪvɪti], \ɹ_ˌeɪ_d_ɪ__əʊ_a_k_t_ˈɪ_v_ɪ_t_i]\
Definitions of RADIOACTIVITY
2006 - WordNet 3.0
2011 - English Dictionary Database
Sort: Oldest first
the
spontaneous
emission
of
a
stream
of
particles
or
electromagnetic rays
in
nuclear
decay
2006
- WordNet 3.0
By Princeton University
the
spontaneous
emission
of
a
stream
of
particles
or
electromagnetic rays
in
nuclear
decay
2011
- English Dictionary Database
By DataStellar Co., Ltd
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