noun
artificial fingernail; fake nail
Refers to a false nail worn over the natural nail, often for cosmetic purposes.
彼女はパーティーのために付け爪をした。
She put on artificial nails for the party.
付け爪が取れそうだ。
My fake nail is about to come off.
Compound of 付け (tsuke, 'attaching') + 爪 (tsume, 'nail'), literally 'attached nail'.