There are multiple definitions:

1. cumulative density function(English)

   • pdf
   • Statistics

2. Cohen-Daubechies-Fauraue(English)

   • refers to orthogonal wavelet
   • Wavelets

3. cumulative distribution function(English)

   • see probability distribution
   • Statistics

4. cation diffusion facilitator(English)

   • refers to a protein superfamily
   • SLC30, TMEM163, Zn
   • Physiology
   • https://doi.org…edicines9020220

5. Cancer Drugs Fund(English)

   • ALL, NICE
   • Oncology, Financial issues, Leukemia
   • https://doi.org…273-019-00799-0