Definition of spiritus in English:

spiritus

noun

literary
  • A particular spirit or quality.

    • ‘As I entered that all-too-familiar room, the creator spiritus took possession of me, held me in its clutches and chastised me for eight weeks, until the work was all but finished.’
    • ‘In animal organisms vital and cognitive functions depend on the spiritus.’
    • ‘Even when the Renaissance Neoplatonist Marsilio Ficino talked about the health of the scholar he meant to refer to the state of his spiritus.’
    • ‘Forget the spiritual connotations of breath, spiritus, soul, or whatever.’

Origin

Latin, ‘breath, spirit’.

Pronunciation

spiritus

/ˈspɪrɪtʊs/