What is the definition or description of: onychomycosis?

Fungal Nail Infect.: A fungal infection of the nails, causing thickening, roughness, and or splitting of the same. Usually caused by trichophyton species.

Nail fungus: Onychomycosis is a term that refers to a fungal infection that affects the toenails or the fingernails. Onychomycosis is not life threatening, but it can cause pain, discomfort, and disfigurement of the nails. Podiatrist and dermatologist are specialist trained to diagnose and help treat this condition.

Toenail fungus. : "onycho" means nail, and "mycosis" means fungal. The nails may be white, yellowed, or darkly discolored, usually thickened and splitting or flaking, and possibly painful.

Fungal Infection: It is a fungal infection within the nail of the hand or feet.