Definition of semimetal in English:

semimetal

noun

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

    • ‘Separating them are metalloids or semimetals.’
    • ‘Typical examples would include metal oxides, metal and semimetal nitrides.’
    • ‘There is no sharp dividing line between the metals and nonmetals; the metalloids, also called semimetals, form a buffer between the two.’
    • ‘It is a metalloid or semimetal, which is defined as ‘an element that has the physical appearance and properties of a metal but behaves chemically like a nonmetal.’’

Origin

Mid 17th century: from modern Latin semimetallum (see semi-, metal).

Pronunciation:

semimetal

/ˈsɛmɪmɛt(ə)l/