Individual: numberPerCubicMeter
http://www.astro.umd.edu/~eshaya/astro-onto/owl/unitsInstances.owl#numberPerCubicMeter
Types
Usage
- numberPerCubicMeter symbol "m-3" (string)
- numberPerCubicMeter hasUnit unitlessNumber
- numberPerCubicMeter hasUnit perCubicMeter