identifier

The concept of a more secure identifier was relatively novel then, and susceptible to fear mongering.

The sole identifier was the Jewish philosophy book he was reading on the Metro.

In fact, table manners are all the more potent an identifier for being completely arbitrary.

It's a biometric identifier, like fingerprints or retina-scans, but it's got a lot more "collisions" than either of those.

The label now bears in handwriting the name of P. amplus pergracilis and is followed by Benson's initials as the identifier.

My sarcastic friends are very explicit about this hat serving as my identifier.

In this process, the human being became a working being, and work an identifier of the species.

This attitude is irrelevant in a context in which best is an identifier of wares, not of dynamic knowledge.