Definition of metallothionein in English:

metallothionein

noun

Biochemistry
  • Any of a class of small, cysteine-rich proteins that bind heavy metals (especially zinc, cadmium, and copper).

Origin

1960s. From metallo- + thion- + -ein.

Pronunciation

metallothionein

/ˌmɛtələʊˈθʌɪəniːn/