four-stroke internal-combustion engine
Word Rarity
Rare
Frequency: Zipf frequency 3.44 in modern English
48
Scrabble Score
34
Letters
8
Syllables
16
Unique Chars
Meaning
n
an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke