Fingerprinting is the process of an observer
uniquely identifying (with a sufficiently high probability) a device
instance or other entity
based on multiple information elements
communicated to the observer
Fingerprinting is of course also used when performing Fingerprint recognition during the Credential Enrollment process.
PANOPTICLICK is a website from EFF that displays if your browser is subject to Fingerprinting
There might be more information for this subject on one of the following: