Definition of beryllium
: a toxic divalent metallic element with four protons that is steel-gray in color, light and strong but brittle, and is used chiefly as a hardening agent in alloys — see element table
Recent Examples of beryllium from the Web
Wineland, a tall, lanky man who looks a bit like Frank Zappa, has already created a 4-qubit quantum computer made of stationary beryllium ions that can perform very simple calculations.
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Origin and Etymology of beryllium
New Latin, from Greek bēryllion
First Known Use: 1819
Learn More about beryllium
Britannica.com: Encyclopedia article about beryllium
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