#1 buffer n. (chemistry) an ionic compound that resists changes in its pH. wn
#2 buffer v. add a buffer (a solution); "buffered saline solution for the eyes". wn
#3 buffer n. [buffer zone] a neutral zone between two rival powers that is created in order to diminish the danger of conflict. wn
#4 buffer v. [cushion, soften] protect from impact; "cushion the blow". wn
#5 buffer n. [fender, cowcatcher, pilot] an inclined metal frame at the front of a locomotive to clear the track. wn
vizzz