Reflexivity (n.) is characteristic of social science insofar as the knowledge it generates is 'injected' back into the reality it describes.
Reflexivity (n.) is characteristic of society insofar as society evolves the capacity to control and program its own development.
Reflexivity (n.) is characteristic of subjects insofar as they are 'concept-bearing animals' who possess the capacity to 'turn back upon' and monitor their own actions.
Reflexivity (n.) is the hallmark of modernity, but it actually subverts reason and the promise of certain knowledge.
Reflexivity (n.) is the idea that, in modern social life, practices are constantly examined in light of, and thus altered by, incoming information about those practices.
Reflexivity (n.) is the notion that all forms of social life are partly constituted by actors' knowledge of them.