Crossdating is the most basic principle of dendrochronology. Crossdating is a technique that ensures each individual tree ring is assigned its exact year of formation.
Crossdating is a method of dating objects, remains, etc, by comparison and correlation with other sites and levels.
Crossdating is the establishment of the date of an archaeological site or level by comparing its distinctive traits with those of another site or level of known date that is assumed to be of similar age.