There are multiple definitions:

1. autofluorescence spectroscope(English)

   • natural emission of light by biological structures such as mitochondria and lysosomes when they have absorbed light
   • EES
   • Spectroscopy

2. Amsterdam Faculty of Science(English)

   • AMC
   • Education, Organizations (scientific)

3. American Fertility Society(English)

   • Organizations (documentation), Embryology /reproduction, Pregnancy

4. awakening from sleep(English)

   • BFW, LSEQ, QOS
   • Sleep medicine
   • https://doi.org/10.1002/hup.534