\mˌɛfɪstəfˈiːli͡ən], \mˌɛfɪstəfˈiːli‍ən], \m_ˌɛ_f_ɪ_s_t_ə_f_ˈiː_l_iə_n]\
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2006 - WordNet 3.0
By Princeton University
2011 - English Dictionary Database
By DataStellar Co., Ltd
2010 - New Age Dictionary Database
By Oddity Software
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.

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  • Preparations of pathogenic organisms or their derivatives made nontoxic and intended for active immunologic prophylaxis. They include deactivated toxins.
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