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unchecked
unchristian
unchurch
unci
uncial
unciform
uncinariasis
uncinate
uncinus
uncivil
uncivilized
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uncinus

un·ci·nus [ un snəss ] (plural un·ci·ni [ un s n ])


noun 
Definition:
 
1. hooked part of animal's body: a small hooked body part, e.g. the hook-shaped tooth of a gastropod or a chitinous hook on the body of an annelid

2. cirrus cloud: a cirrus cloud that is curled in a hook shape at one of its elongated ends

[Mid-19th century. < Latin< uncus "hook"]
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