from The American Heritage® Dictionary of the English Language, 4th Edition
- n. In an internal combustion engine, the ratio of the volume between the piston and cylinder head before and after a compression stroke.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The ratio of the volume between the cylinder head of an internal combustion engine and the piston before and after the compression stroke
- n. The ratio of the size of compressed data after the execution of some compression algorithm to the size of the original data.
Sorry, no etymologies found.