RADIOLARIAN

\ɹˌe͡ɪdɪə͡ʊlˈe͡əɹi͡ən], \ɹˌe‍ɪdɪə‍ʊlˈe‍əɹi‍ən], \ɹ_ˌeɪ_d_ɪ__əʊ_l_ˈeə_ɹ_iə_n]\
Sort: Oldest first
 
2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd