What is another word for drying oil?
Pronunciation: [dɹˈa͡ɪɪŋ ˈɔ͡ɪl] (IPA) 
A "drying oil" is a type of oil that when exposed to air, it oxidizes and forms a hard, protective film on surfaces such as wood, metal, or canvas. These oils are commonly used in paints, varnishes, and finishes. Some common synonyms for "drying oil" include "hardening oil," "oxidizing oil," and "polymerizing oil." Other terms include "oil-based varnish," "oil-based paint," and "oil-based enamel." These oils are derived from natural sources and have been used for centuries in traditional painting and woodworking techniques. Despite the availability of synthetic alternatives, drying oils remain popular due to their unique properties and durability.
