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单词	umbilicate
释义	umbilicate /ʌmˈbɪlɪkət / adjective Botany & Zoology 1(Especially of the cap of a fungus) having a central depression. 1.1(Of a shell) having an umbilicus.The dominant taxa at that time (modal geometries C and D) had compressed, moderately to openly umbilicate shells with slowly expanding whorls, morphologies poorly exploited by Permian goniatitids.... Modal geometries C and D appear to represent the tendency for these pioneers, i.e., slowly expanding, moderately to openly umbilicate, compressed shells, typified by Otoceras and Ophiceras. By contrast, a narrowly umbilicate and thin shell possesses slender and dense ornamentation.
随便看	definitively deflagrate deflagration deflagrator deflate deflation deflationary deflationist deflator deflect deflection deflector deflesh deflexed deflexion deflocculate deflocculation defloration deflower defocus Defoe, Daniel defogger defoliant defoliate defoliation

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