Answer :
Final answer:
Onychomycosis refers to significant darkening of the fingernails or toenails caused by a fungal infection.
Explanation:
The term Onychomycosis refers to significant darkening of the fingernails or toenails. It is a fungal infection that affects both the nails and the skin. This condition is relatively common among adults and can cause the nails to become yellow, brittle, and prone to breaking.
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