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	hocus hocus-pocus hod hodden hoddie Hodeida Hodge hodgepodge Hodgkin, Dorothy Hodgkin's disease Hodgkin, Sir Alan Lloyd hodiernal hodman hodograph hodoscope hoe hoecake hoedown Hoek van Holland hoer Hoe, Richard March Hofei Hoffa, Jimmy Hoffman, Dustin Hoffmann, E. T. A.

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