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Definition of beryllium

beryllium

/bəˈrɪl.i.əm/
be · ryl · li · um
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beryllium Lexical Profile

beryllium Game Scores & Validity

• noun

1

A hard, lightweight, steel-gray alkaline earth metallic element (symbol Be, atomic number 4) that occurs naturally in minerals such as beryl and emerald and is used in high-strength aerospace alloys and X-ray windows.

Example

"The primary mirror of the space telescope was constructed from gold-coated beryllium because the metal retains its shape at extremely low temperatures."

Synonyms
View all synonyms for beryllium

• Rhymes for beryllium

• Nearby Words

berth
berthing
beryl
beryllium
beseech
beseeching
beseechingly

Word Origin & Etymology

Coined in Modern Latin in the early 19th century by German chemist Martin Heinrich Klaproth from Latin beryllus ("beryl"), from Ancient Greek bēryllos, as the element was first isolated from the mineral beryl.

Cite this Entry

Wordmom. (2026). Definition of Beryllium. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/beryllium
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