EXTENSION [ik-sten-shuhn] What it is: Any artificial product that creates an extension of the fingernail. VIDEOS RELATED TO THIS TERMDafne FernandezTap into the Wise & Powerful Part of YouInside the Julie K Nail Artelier LEARN MORE TERMSOMBRÉUV LAMPCONTACT DERMATITISESSENTIAL OILSUREAACRYLIC BRUSHART BRUSHESSPLIT COMPLEMENTARYNAIL FORMALKALINEACETONEVERTICAL OMBRESPLINTER HEMORRHAGECALLUS SOFTENERDISINFECTIONC-CURVEDIP NAILSCOLOR WHEELPROXIMAL NAIL FOLDKERATIN CELLS PrevNext