Definition from Wiktionary, the free dictionary
flintstone (plural flintstones)
- A piece of flint.
1858, Ecclesiological Society, The Ecclesiologist:
- The very poor will sometimes adorn the graves of those they love with oystershells, or flintstones, or small plaster busts, or tiles […]
1991, Damrongrāchānuphāp, Damrong Rajanubhab, Journey through Burma in 1936:
- At times when there was inadequate sunlight to focus through the lens, the king struck flintstones to ignite the flame in the same way.
1964, United States Dept. of Agriculture, Yearbook of Agriculture:
- They stacked flintstones in a way that permitted night winds to pass around them and cool them so they collected moisture.