
1) Absence of the nail
Found on
https://www.crosswordclues.com/clue/anonychia

Anonychia is the absence of nails, a rare anomaly, which may be the result of a congenital ectodermal defect, ichthyosis, severe infection, severe allergic contact dermatitis, self-inflicted trauma, Raynaud phenomenon, lichen planus, epidermolysis bullosa, or severe exfoliative diseases.{rp|784} ==Congenital form== This is rare and is usually due ...
Found on
http://en.wikipedia.org/wiki/Anonychia
[moth] Anonychia is a genus of moth in the family Geometridae. ...
Found on
http://en.wikipedia.org/wiki/Anonychia_(moth)

(an″o-nik´e-ә) absence of the nail(s).
Found on
http://www.encyclo.co.uk/local/21001

Type: Term Pronunciation: an′ō-nik′ē-ă, an-ō-nī-kō′sis Definitions: 1. Absence of the fingernails and toenails.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=4431

anonychia Congenital absence of nails (finger and/or toe).
Found on
http://www.wordinfo.info/words/index/info/view_unit/1480/

congenital absence of the nails.
Found on
https://www.infoplease.com/dictionary/anonychia
No exact match found.