There are multiple definitions:

1. N-acetyltransferase(English)

   • see retina, melatonin
   • MAP
   • Circadian rhythm, Cell biology
   • https://doi.org…science.1187274

2. neuronal activity topography(English)

   • EEG
   • Electrophysiology, Neurons

3. nonaccidental trauma(English)

   • Post-traumatic state

4. nucleic acid testing(English)

   • a molecular technique for screening blood donations to reduce the risk of transfusion transmitted infections (TTIs) in the recipients, thus providing an additional layer of blood safety
   • TTI, HBV, HIV, ID, MP, HCV, IWP, MP6
   • Biochemistry, Hematology
   • https://doi.org…973-6247.126679
   • https://doi.org…95.2008.01966.x

5. negative automatic thought(English)

   • is not-evidence based and does not reflect reality in functional way, and usually produced along with cognitive distortions. For instance a NAT of “she doesn't care about me” may accompany a cognitive distortion called personalization
   • CDS
   • Psychology, Emotional aspects, Behavior(al science), Cognitive function, Depression
   • https://doi.org…al.pone.0105956

6. neoadjuvant therapy(English)

   • plays a prominent role in the treatment of cancer. Originally defined as systemic therapy given before local treatment, the concept has been extended to include radiation therapy given before surgery
   • NACT, PDAC
   • Oncology, Therapeutic approaches
   • https://pubmed.…ih.gov/8242583/