diffusive vs evanescent

diffusive

adj
  • That diffuses something; disseminating. 

  • That is spread or dispersed across a wide area or among a large number of people. 

  • Involving or employing many words; expansive, discursive; (in negative sense) long-winded. 

  • Pertaining to diffusion. 

evanescent

adj
  • Disappearing, vanishing. 

  • Of an oscillating electric or magnetic field: not propagating as an electromagnetic wave but having its energy spatially concentrated in the vicinity of its source. 

  • Of a number or value: diminishing to the point of reaching zero as a limit; infinitesimal. 

  • Ephemeral, fleeting, momentary. 

  • Of plant parts: shed after a period. 

  • Barely there; almost imperceptible. 

How often have the words diffusive and evanescent occurred in a corpus of books? (source: Google Ngram Viewer )