Definition of macrobian in US English:

macrobian

adjective

rare
  • Long-lived; relating to the prolongation of life.

Origin

Late 17th century; earliest use found in Peter Motteux (1663–1718), journalist and translator. From ancient Greek μακρόβιος long-lived + -an.

Pronunciation

macrobian

/məˈkrəʊbɪən/