HYPERVENTILATION

\hˌa͡ɪpəvˌɛntɪlˈe͡ɪʃən], \hˌa‍ɪpəvˌɛntɪlˈe‍ɪʃən], \h_ˌaɪ_p_ə_v_ˌɛ_n_t_ɪ_l_ˈeɪ_ʃ_ə_n]\
Sort: Oldest first
 
2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd