(uncountable, usually) The chemical element (symbol B) with an atomic number of 5, which is a metalloid found in its pure form as a dark amorphous powder.
(uncountable, usually) A single atom of this element.
Pronounced as (IPA)
/ˈbɔːˌɹɒn/
Etymology
From the stem of borax (boro-) + -on (based on carbon). Coined by British chemist Humphry Davy as a modification of his earlier word boracium.