- (of two objects) meeting with the sides foremost.
- with the side or sides foremost, especially in a collision: The other car struck me side-on.
Origin of side-on
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for side-on
"Kept you from throwing her side-on and giving me that spill you promised," he chuckled.Down the Yellowstone
Lewis R. Freeman