rondelle

rondelle [ron-del] ExamplesWord Origin noun

1. a small disk of glass used as an ornament in a stained-glass window.
2. Jewelry. a flat bead, often of rock crystal or onyx, used in a necklace as a spacer between contrasting stones.

Origin of rondelle From French, dating back to 1830–40; see origin at rondel Examples from the Web for rondelle Historical Examples of rondelle

Rondelle, ron-del′, n. anything round: one of the successive crusts formed on molten metal when cooling, a rosette.

Chambers’s Twentieth Century Dictionary (part 3 of 4: N-R)

Various