animal vs organism

animal

noun
  • A eukaryote of the clade Animalia; a multicellular organism that is usually mobile, whose cells are not encased in a rigid cell wall (distinguishing it from plants and fungi) and which derives energy solely from the consumption of other organisms (distinguishing it from plants). 

  • Any member of the kingdom Animalia other than a human. 

  • A person who behaves wildly; a bestial, brutal, brutish, cruel, or inhuman person. 

  • Any land-living vertebrate (i.e. not fishes, insects, etc.). 

  • A person of a particular type. 

  • Matter, thing. 

adj
  • Of or relating to animals. 

  • Pertaining to the spirit or soul; relating to sensation or innervation. 

  • Raw, base, unhindered by social codes. 

  • Excellent 

organism

noun
  • A discrete and complete living thing, such as animal, plant, fungus or microorganism. 

  • Something with many separate interdependent parts, seen as being like a living thing; an organic system. 

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