endogenous
From within itself
Endogenous means arising from within an organism, system, or process rather than from external causes.
In biology, endogenous substances are produced by the body itself: endogenous hormones, endogenous opioids.
In economics, endogenous variables are determined within a model rather than imposed from outside.
The opposite is exogenous.
The depression appeared to be endogenous rather than triggered by life events.
Belonging by nature
- innateExisting since birth
- inbornExisting from birth
- congenitalExisting from birth
- nativeOriginating from a place
inherent · constitutional · hardwired · instinctive · built-in · integral · ingrained · deep-rooted
Bloodstream signaling molecules
- metabolismCellular nutrient conversion
- enzymesReaction-speeding proteins
- neurotransmittersChemical neural messengers
- biosynthesisLiving production of molecules
homeostasis · cellular · proteins · DNA · RNA · mitochondria · ribosomes · chromosomes
Creating something original
- technologyApplied scientific methods
- productivityOutput relative to input
- R&DCreating new products
- institutionalOf formal establishments
intrinsic
Belonging by nature
- innateExisting since birth
- inbornExisting from birth
- congenitalExisting from birth
native · inherent · constitutional · hardwired · instinctive · built-in · integral · ingrained · deep-rooted · fundamental
hormones
Bloodstream signaling molecules
- metabolismCellular nutrient conversion
- enzymesReaction-speeding proteins
- neurotransmittersChemical neural messengers
biosynthesis · homeostasis · cellular · proteins · DNA · RNA · mitochondria · ribosomes · chromosomes · glands
innovation
Creating something original
- technologyApplied scientific methods
- productivityOutput relative to input
- R&DCreating new products
institutional · self-sustaining · development · agglomeration
endogenousexogenous
Originating outside the system
acquired · introduced · induced · transplanted · grafted
endogenousexogenous
Originating outside the system
synthetic · artificial · administered · supplemental · injected