- (of an internal-combustion engine) having the cylinders ranged side by side in one or more rows along the crankshaft.
Origin of in-line
First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- denoting a linked sequence of manufacturing processes
- denoting an internal-combustion engine having its cylinders arranged in a line