| onychoma | <tumour> A tumour arising from the nail bed. Origin: onycho-+ G. -oma, tumour (05 Mar 2000) |
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| onychomadesis | Complete shedding of the nails, usually associated with systemic disease. Origin: onycho-+ G. Madesis, a growing bald, fr. Madao, to be moist, (of hair) fall off (05 Mar 2000) |
| onychomalacia | Abnormal softness of the nails. Origin: onycho-+ G. Malakia, softness (05 Mar 2000) |
| onychomancy | Divination by the nails. Origin: Gr, a finger nail + -mancy: cf. F. Onychomancie. Source: Websters Dictionary (01 Mar 1998) |