There are multiple definitions:

1. medium-sized spiny neuron(English)

   • Nacc, D2-MSN, CAG, CS, HD, HTT, YAC, YAC128, nSOC, TRPC, STIM1, STIM2
   • Synapse, Adaptation & plasticity, Neurons, Psychiatry, Brain (dys)function
   • https://doi.org…syn.2021.799274
   • https://doi.org…2915-018-0526-3
   • https://doi.org…3233/JHD-170266

2. mesoporous silica nanoparticle(English)

   • refers to bone tissue engineering materials
   • DDS, DE, ALP, HAP, nHAP, PLGA, GBR, LL
   • Nano-sciences, Pharmacology / pharmaceutics, Biomaterials, Skeleton and bone (formation)
   • https://doi.org…3390/md20080480
   • https://doi.org…55/2016/9824827
   • https://doi.org…rfb.2018.12.071

3. master of science in nursing(English)

   • LSI, PBL
   • Nurse / nursing, Specialist / expert
   • https://doi.org…urs.2007.01.018