pot stand; trivet
A flat object placed under a hot pot or pan to protect the table or counter.
熱い鍋をテーブルに直接置かないで、鍋敷きを使ってください。
Don't put the hot pot directly on the table; please use a pot stand.
Compound of 鍋 (nabe, 'pot') and 敷き (shiki, 'spreading' or 'mat'), from the verb 敷く (shiku, 'to spread').