PISTONS
9
Scrabble
11
WWF
P(3) I(1) S(1) T(1) O(1) N(1) S(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- A solid disk or cylinder that fits inside a hollow cylinder, and moves under pressure (as in an engine) or displaces fluid (as in a pump)
- A valve device in some brass instruments for changing the pitch
Source: Wiktionary
