alumina
UK[əˈluːmɪnə]US[əˈluːmɪnə]
n
a white solid compound of aluminum and oxygen, occurring as bauxite and used in producing aluminum metal and in abrasives and ceramics.
Morpheme Breakdown
alumin
a
alumin
aluminum
a
chemical suffix
Etymology
the word 'alumina' is a modern scientific formation from the early 19th century. it is constructed directly from 'aluminum', the name for the metallic element, which itself was coined from the latin 'alumen', meaning 'alum' (a sulfate salt). the suffix '-a' is a conventional ending in chemistry for naming certain oxides, particularly those derived from metals. thus, the term logically and literally denotes "the oxide of aluminum," reflecting its chemical composition and its industrial source material.
Analysis
Structure: alumin (aluminum) + a (chemical suffix)
- alumin: from the modern latin 'aluminum', the name of the element, itself derived from 'alumen' (alum). functional role: root/base, denoting the element aluminum.
- a: a common suffix in chemical nomenclature, often used to form names of oxides, especially from metallic elements. functional role: derivational suffix.
Examples
the refinery processes bauxite to extract pure alumina.
alumina is a key component in the manufacture of synthetic sapphires.
the ceramic's hardness is increased by the addition of alumina particles.