EXTREME AND MEAN RATIO
\ɛkstɹˈiːm and mˈiːn ɹˈe͡ɪʃɪˌə͡ʊ], \ɛkstɹˈiːm and mˈiːn ɹˈeɪʃɪˌəʊ], \ɛ_k_s_t_ɹ_ˈiː_m a_n_d m_ˈiː_n ɹ_ˈeɪ_ʃ_ɪ__ˌəʊ]\
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In geom. the ratio where a line is so divided that the whole line is to the greater segment as that segment is to the less, or where a line is so divided that the rectangle under the whole line and the lesser segment is equal to the square of the greater segment.
By Daniel Lyons
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.