food that is discarded (as from a kitchen)
"The stray dog quickly scavenged through the garbage bin for any leftover scraps of pizza crust."
plural of scrap
"After finishing his lunch, he gathered up all the leftover food scraps from his plate to toss in the bin."
Third-person singular simple present indicative form of scrap
"The dog waits patiently for scraps to fall from the dinner table."