1. bookcrossing - Noun
2. bookcrossing - Verb
bookcrossing
present participle of bookcross
bookcrossing (countable and uncountable, plural bookcrossings)
The practice of leaving a book in a public location to be found and read by others, who then do the same.
I remember when BookCrossing was the hub of the bookish community but it seems to have died down here on the American side. Source: Internet