table mat

US /ˈteɪ.bəl ˌmæt/
UK /ˈteɪ.bəl ˌmæt/
"table mat" picture
1.

a small mat placed under a plate at a dining table to protect the table surface or for decoration

:
Please put a table mat under your plate to protect the wooden table.
The new set of table mats added a nice touch to the dining room.