Aluminous

Part of speech: adjective

Definitions

1. Describing materials or substances that possess a shiny, metallic luster similar to aluminum, especially in their reflective traits
2. Relating to any material or compound that includes aluminum as a primary element and is often recognized for its physical properties like durability and lightness
3. Exhibiting a bright and lustrous appearance reminiscent of the metal aluminum ; composed of or characterized by the presence of aluminum within its structure

Etymology: Aluminous is a plain formation: it takes "alumina", the name for aluminium oxide, and adds the English suffix "-ous", meaning "full of" or "having the qualities of". The suffix itself has a long pedigree, descending from Proto-Indo-European through Latin "-osus" and reaching English by way of Old French and Middle English, so the word is essentially an old adjective-maker bolted onto a modern chemical name. The base word is the more recent piece. "Alumina" comes from "alumen", the Latin word for alum, a mineral salt used since antiquity as a mordant and astringent. Alum was known long before anyone isolated the metal in it, so the older name for the substance carries the story of the word forward: the element was named after a compound that people had handled for centuries. Because the suffix is attached to a technical term rather than to a common noun, the resulting adjective stays close to chemistry, which explains why its sense of being bright and lustrous, like the metal, sits alongside the more literal sense of containing aluminium.

Synonyms: alumina-based, alumino-silicate, bauxite-derived, ceramic, mineral

Antonyms: non-aluminous, organic, synthetic, metallic, inorganic