Definitions:

1. A cosmetic lacquer that dries quickly and that is applied to the nails to color them or make them shiny. NOUN
   • Her nails shone with a glossy finish after she applied a clear nail enamel.
2. A pigmented lacquer that is applied to the fingernails and toenails to protect, decorate, or give a glossy appearance to the nails. NOUN
   • The new nail enamel formula promises longer-lasting color and a smoother finish.

Synonyms:

• nail lacquer
• nail paint
• nail polish
• nail varnish