noun / adjective
diamond
DYE-mund/ˈdaɪmənd/
A very hard, brilliant gemstone made of crystallized carbon.
The cut diamond shines beside a rough crystal.
Etymology
Greek adamas named a supposedly hardest material and meant “unbreakable” or “inflexible.” That hardness connects it to the precious stone, though the Greek word’s deeper origin is uncertain.
In context
the diamond is simply a pure form of carbon. NARRATOR: The discovery of what diamonds are composed of fell to British chemist
More examples
- She wore a diamond ring.
- Several diamonds were set into the brooch.
- The tool had a diamond tip.
Forms
diamond · diamonds
Similar words
- gemstone
- The broader category of precious stones.