GLACIAL BOULDER

\ɡlˈe͡ɪʃə͡l bˈə͡ʊldə], \ɡlˈe‍ɪʃə‍l bˈə‍ʊldə], \ɡ_l_ˈeɪ_ʃ_əl b_ˈəʊ_l_d_ə]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd