flipper
Concise Oxford English Dictionary © 2008 Oxford University Press:
flipper/ˈflɪpə(r)/
▶noun
- 1 a broad, flat limb without fingers, used for swimming by sea animals such as seals and turtles.
- 2 a flat rubber attachment worn on the foot for underwater swimming.
- 3 a pivoted arm in a pinball machine.
'flipper' also found in these Oxford entries:

