GAINFUL
\ɡˈe͡ɪnfə͡l], \ɡˈeɪnfəl], \ɡ_ˈeɪ_n_f_əl]\
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By William Dodge Lewis, Edgar Arthur Singer
By James Champlin Fernald
By Thomas Sheridan
Word of the day
heat-seeking missile
- missile with guidance system that directs it toward targets emitting infrared radiation (as the emissions of a jet engine)