Definition of accension in English:

accension

noun

historical Medicine
rare
  • The action of catching fire or setting something on fire; the state of being on fire; combustion; ignition; Medicine fermentation producing heat, heating or overheating of the blood or other ‘humour’.

Origin

Mid 17th century; earliest use found in Thomas Browne (1605–1682), physician and author. From post-classical Latin accension-, accensio action of kindling (Vetus Latina), sexual arousal, illumination of the mind, (in medical context) inflammation from classical Latin accens-, past participial stem of accendere + -iō.

Pronunciation:

accension

/əkˈsɛnʃn/