What is a "near drowning" incident?

Our 12 month old granddaughter crawled and took a header face first into a pool and as doing so was immediately lifted out, crying in fright but no choking or gasping for breath. I am concerned about "dry drowning" and keep reading about "a near drowning" incident. She has exhibited none of the symptoms mentioned, but the whole idea scares the bejeesus out of me. Was this a "near drowning" incident?