noun ·Uncommon ·College level

Definitions

Noun

1. 1
   The chemical element (symbol Be) with an atomic number of 4; a soft silvery-white low density alkaline earth metal with specialist industrial applications. uncountable
2. 2
   a light strong brittle grey toxic bivalent metallic element wordnet
3. 3
   An atom of this element. countable

Synonyms

All synonyms

gluciniumarsenicatomic number 4beddtglucinium

Example

More examples

"Beryllium, magnesium, calcium, strontium, barium and radium are alkaline earth metals."

Etymology

From beryl + -ium, so called because the element is a key component of the mineral beryl.

Related phrases

beryllium acetateberyllium acetylacetonateberyllium aluminateberyllium aluminium oxideberyllium borideberyllium borohydrideberyllium bromideberyllium carbideberyllium chlorideberyllium copperberyllium fluorideberyllium formate

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.