noun
Usage: sometimes capitalized D
: an internal-combustion engine in which air is compressed to a temperature sufficiently high to ignite fuel injected directly into the cylinder where the combustion and expansion actuate a piston
noun
Usage: sometimes capitalized D
: an internal-combustion engine in which air is compressed to a temperature sufficiently high to ignite fuel injected directly into the cylinder where the combustion and expansion actuate a piston
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012