There are multiple definitions:

1. small fragment nuclease(English)

   • one of the cellular proteins that reportedly degrades small, single-stranded DNA and RNA
   • REX2
   • Molecular biology, Biochemistry
   • https://bioone.…-RA-051.1.short

2. small fiber neuropathy(English)

   • and fibromyalgia syndrome are distinct pain conditions that share commonalities
   • IENFD, FMS
   • Neuropathy, Gender aspects, Aging, Pain
   • https://doi.org…b013e3181bacf05
   • https://doi.org…000000000001136