generic property

Short definition from Wiktionary

Noun

1. 1
   Used other than figuratively or idiomatically: see generic, property.
2. 2
   A property that is true almost everywhere in a given set (i.e., the set of points at which the property is not true is either of measure zero or a subset of a set of measure zero).
3. 3
   A property that is true in some dense open subset of a given set.