anonychia an·o·nych·i·a (ān'ə-nĭk'ē-ə) or an·o·ny·cho·sis (ān'ə-nĭ-kō'sĭs)
n.
Congenital absence of the nails.
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |