PHOTOCATHODE
\fˌə͡ʊtə͡ʊkˈaθə͡ʊd], \fˌəʊtəʊkˈaθəʊd], \f_ˌəʊ_t_əʊ_k_ˈa_θ_əʊ_d]\
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a cathode that emits electrons when illuminated
By DataStellar Co., Ltd
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.