rotaxane
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Rotaxane.png/220px-Rotaxane.png)
Noun
[edit]rotaxane (plural rotaxanes)
- (physical chemistry) A complex of two molecules, one ring-shaped and the other dumbbell-shaped, with the dumbbell threaded through the ring and having end groups too large to pass through the ring.