Class X
Class X stands for:
- Class X , Flare Class, see Solar Flare #General
- Class X , soil type according to the German system, see soil type #Class X - Reductosols
- Class X , level of evidence in medicine, see level of evidence #Simplified classification
- Class X (potters) , Attic-Greek ceramic artist group, see list of Greek potters and vase painters / X # artist groups
- NZR-Class X , New Zealand Railways steam locomotive series
- U-Boot-Klasse X , U-Boot-Klasse of the German Kriegsmarine
See also:
- X class (disambiguation)
- X series (disambiguation)
- Model X (disambiguation)
- X-Series (disambiguation)
- Type X (disambiguation)
