intrinsic

1. Belonging to a thing by its very nature (synset 301351106)
   "form was treated as something intrinsic, as the very essence of the thing"
   also:

   • inalienable, unalienable - incapable of being repudiated or transferred to another
   • essential - basic and fundamental
   similar to:

   • built-in, constitutional, inbuilt, inherent, integral - existing as an essential constituent or characteristic
   • inner, internal, intimate - innermost or essential
   same as: intrinsical
2. Situated within or belonging solely to the organ or body part on which it acts (synset 300952582)
   "intrinsic muscles"
   referred to in: anatomy, general anatomy - the branch of morphology that deals with the structure of animals
   similar to: internal - happening or arising or located within some limits or especially surface

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