um·bil·i·cate /ˌʌmˈbɪlɪkət/
(a.)有肚臍的,臍狀的
um·bil·i·cate /-ˌket/ 不及物動詞
(拉umbilicatus)臍狀的
Um·bil·i·cate Um·bil·i·ca·ted a. (a) Depressed in the middle, like a navel, as a flower, fruit, or leaf; navel-shaped; having an umbilicus; as, an umbilicated smallpox vesicle. (b) Bot. Supported by a stalk at the central point.
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umbilicate
adj : depressed like a naval