Definition of "beryl" in English

noun

1. (uncountable, mineralogy) A mineral of pegmatite deposits, often used as a gemstone (molecular formula Be₃Al₂Si₆O₁₈).

2. (countable) An example (a stone) of the mineral beryl.

   • The crown was set with six beryls of excellent size and color.

3. (uncountable) A dull blueish green color.

adjective

1. Of a dull bluish green colour.