ROENTGEN RAYS

\ɹˈə͡ʊntd͡ʒən ɹˈe͡ɪz], \ɹˈə‍ʊntd‍ʒən ɹˈe‍ɪz], \ɹ_ˈəʊ_n_t_dʒ_ə_n ɹ_ˈeɪ_z]\
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2010 - Medical Dictionary Database
By DataStellar Co., Ltd
 
1898 - Warner's pocket medical dictionary of today.
By William R. Warner
 
1898 - American pocket medical dictionary
By Willam Alexander Newman Dorland