Room in which to stretch the legs while seated.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "legroom" in a sentence
"Fan view: The skinny seat with cramped legroom is perhaps the least comfortable in the league."
"For those passengers willing to pay, more legroom translates to millions of dollars for the airlines."
"Ideally, David is looking for a car with five doors, decent rear legroom, which is small and easy to park, with an automatic gearbox."