| subungual | Subunguial Beneath the finger or toe nail. Synonym: hyponychial. Origin: L. Unguis, nail (05 Mar 2000) |
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| subungual abscess | Suppuration extending beneath a fingernail or toenail, usually from a parenychia. (05 Mar 2000) |
| subungual exostosis | Painful osseous outgrowths that elevate the nail of the great toe or fingers in young people. (05 Mar 2000) |
| subungual haematoma | <dermatology, surgery> A collection of blood under the fingernail, often the result of blunt trauma to the nail. (06 Mar 1998) |
| subungual melanoma | <tumour> A melanoma beginning in the skin at the border of or beneath the nail. Synonym: melanotic whitlow. (05 Mar 2000) |