Definition of hormesis in English:

hormesis

noun

Biology
  • The phenomenon or condition of a substance or other agent having a beneficial physiological effect at low levels of exposure even though toxic or otherwise harmful at higher levels.

Origin

1940s. From Hellenistic Greek ὅρμησις rapid motion, eagerness from ancient Greek ὁρμάειν to set in motion, impel, urge on (from ὁρμή rapid motion forward, onrush, impulse from the base of ὄρνυσθαι to urge on, make rise, of uncertain origin (but apparently Indo-European) + -σμα, extended form of -μα: see -oma) + -σις.

Pronunciation

hormesis

/hɔːˈmiːsɪs/