The Collaborative International Dictionary
round robin \round" rob"in\, round-robin \round"-rob"in\(round" r[o^]b"[i^]n), n.
Any series or sequence of actions.
A document circulated from one person to another in a group, often with comments added by each recipient.
A petition or similar document, in which the signatures are arranged in circular form in order to conceal the order of signing.
(Sports) A tournament in which each contestant plays against every other contestant at least once; a failure to win any contest does not result in elimination from the tournament. Contrasted with elimination tournament
Wiktionary
n. (form of attributive form round robin English)
Wikipedia
Round-robin is a document signed by multiple parties in a circle to make it more difficult to determine the order in which it was signed, thus preventing a ringleader from being identified.
Usage examples of "round-robin".
And the people sing rounds and talk in circles-and write round-robin letters with ball-point pens!