Definition of metalloid in English:

metalloid

noun

Chemistry
  • An element (e.g. arsenic, antimony, or tin) whose properties are intermediate between those of metals and solid non-metals or semiconductors.

    Also called semimetal
    • ‘As its two allotropic forms might suggest, silicon is a metalloid.’
    • ‘Inasmuch as chemical properties determine toxicological properties, metalloids should not be considered as a subset of metals but as a subset of nonmetals.’
    • ‘Another group of elements - the metalloid or semi-metal elements - share some properties with the metals and some with the nonmetals.’
    • ‘Separating them are metalloids or semimetals.’
    • ‘Chemically, elements can be classified as metals, metalloids, or non-metals based, in part, upon these physical properties.’

Pronunciation

metalloid

/ˈmɛt(ə)lɔɪd/