Definition of sirtuin in English:

sirtuin

noun

  • A type of protein involved in regulating cellular processes including the ageing and death of cells and their resistance to stress.

    as modifier ‘sirtuin proteins promote longevity in many organisms’

Origin

Early 21st century: from sirtu representing Sir2, the name of a gene that regulates cellular processes in yeast, + -in.

Pronunciation

sirtuin

/səːˈtuːɪn/