thermalunderskirt
nounUK /ˈθɜːməl ˈʌndəskɜːt/
US /ˈθɜːrməl ˈʌndərskɜːrt/
A warm skirt you wear under your clothes to stay cozy.
She put on a thermalunderskirt before going out into the snow.
OTHER MEANINGS
2. A heated or electrically warmed skirt worn for extra cold protection.
The battery-powered thermalunderskirt kept his legs warm on the ice.
3. A thin insulating layer sewn into a skirt for added warmth.
This thermalunderskirt has a fleece lining for extra heat.
4. A garment worn by performers to keep muscles warm between acts.
The dancer wore a thermalunderskirt backstage to stay limber.