Metal Sliding Cylinder Exerting Pressure on Fluids
This page is the CodyCross answer for the clue below from Casino, Group 264, Puzzle 4 (Kunio Busujima).
Question is: Metal Sliding Cylinder Exerting Pressure on Fluids
and the answer is: PISTON
Word Meaning:
PISTON — (mechanics) 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)
Definitions from Wiktionary.