1. One that breaks away; a departure from or rejection of (as a group or tradition)
2. A play (as in hockey) in which an offensive player breaks free of the defenders and rushes toward the goal; a sudden acceleration by one or more bicyclists pulling away from the pack in a race
3. An object made to shatter or collapse under pressure or impact
4. The act of breaking away or withdrawing from; SYN. breaking away.

1. Designed to break or tear or come apart easily.
2. Having separated or advocating separation from another entity or policy or attitude; SYN. separatist.