Define "acrylic nails" in terms of nail enhancement.

Acrylic nails are defined as a type of artificial nails created from a mixture of acrylic powder and liquid monomer. When combined, these two components form a hard protective layer that is sculpted over the existing natural nail or used to extend the length of the nail. This enhancement is durable, can be shaped and filed to the desired length and style, and is often used to achieve a specific aesthetic that is challenging to accomplish with natural nails alone.

The process involves applying the acrylic mixture, which hardens quickly when air is introduced. This procedure allows for a wide range of designs and finishes, making it a popular choice among those looking for long-lasting nail enhancements. This definition highlights the unique characteristics of acrylic nails, distinguishing them from other nail treatments such as simple nail polish, natural nail care, or tools used in manicures.