MADREPORITE
\mˈadɹɪpˌɔːɹa͡ɪt], \mˈadɹɪpˌɔːɹaɪt], \m_ˈa_d_ɹ_ɪ_p_ˌɔː_ɹ_aɪ_t]\
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By Noah Webster.
By Nuttall, P.Austin.
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Fossil madrepore; a variety of limestone having a small prismatic or columnar structure which looks like the pore arrangement of coral, but which is only a species of crystallisation.
By Stormonth, James, Phelp, P. H.
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A flat circular or pentagonal perforated plate marked by grooves, lying at the end of an interambulacral area in many, or free between two ambulacral areas in other Echinoids, or between the rays in the Asteroids; a modified genital plate.
By Henderson, I. F.; Henderson, W. D.
Word of the day
Oncodazole
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