a wall, wire screen, or the like, serving to prevent a ball from going too far beyond the normal playing area.
Baseball. the catcher.
a person or thing that serves as a support, safeguard, or reinforcement: There were technicians on board as backstops to the automated controls.
verb (used without object), back·stopped, back·stop·ping.
to act as a backstop.
verb (used with object), back·stopped, back·stop·ping.
to act as a backstop to: The government agreed to backstop companies that invested in oil exploration.
Origin of backstop
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
sport a screen or fence to prevent balls leaving the playing area
a block or catch to prevent excessive backward movement, such as one on the sliding seat of a rowing boat
verb -stops, -stopping or -stopped (tr)
US to provide with backing or support
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Online Etymology Dictionary, © 2010 Douglas Harper