I had thought that the term was a nonce, but it seems as if it's been picked up by other authors.
The information gained by the eavesdropper would permit a replay attack, but only with a request for the same document, and even that may be limited by the server's choice of nonce.
In this protocol we use the serial number of the message as a nonce.
That bloke who lives at number 53 is a nonce!.
'Idiot!' exclaimed the doctor, who for the nonce was not capable of more than such spasmodic attempts at utterance.
For the nonce he was rather nonplussed but inasmuch as the duty plainly devolved upon him to take some measures on the subject he pondered suitable ways and means during which Stephen repeatedly yawned.