杯墊

杯垫
bēidiàn
(beverage) coaster

CEDICT

coaster (piece of material used to protect the surface of a table)

Wiktionary

用來放置茶杯的小墊子。

重編國語辭典

Entry Composition

=1 杯 bēi
  1. cup
  2. trophy cup
  3. classifier for certain containers of liquids: glass, cup
=1 杯 bēi variant of 杯 bēi
=1 杯 bēi
  1. variant of 杯 bēi
  2. trophy cup
  3. classifier for certain containers of liquids: glass, cup
2 墊 diàn
  1. pad
  2. cushion
  3. mat
  4. to pad out
  5. to fill a gap
  6. to pay for sb
  7. to advance (money)