What is "cooccurrence"

alt. 1 (context uncountable English) The fact of a thing occurring simultaneously with something else; correlation. 2 (context countable English) An instance of a thing occurring simultaneously with something else; coincidence. n. 1 (context uncountable English) The fact of a thing occurring simultaneously with something else; correlation. 2 (context countable English) An instance of a thing occurring simultaneously with something else; coincidence.