There are multiple definitions:
WD(40) repeat [domain](English)
- proteins containing a conserved tryptophan (W)-aspartic acid (D) motif
- WD, WD40, WDR5
- Epigenetics, Genomics
- https://doi.org…medchem.1c00037
wide dynamic range(English)
- camera technology that balances lighting in high-contrast scenes, ensuring both bright and dark areas are visible simultaneously
- AITC, ET-1, HT
- Signal analysis, Neurology, Physiology
- https://doi.org…2/jn.00723.2015