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1. A free radical is a molecular fragment having an
unpaired electron.

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2. Some organs, such as the stomach, heart and liver, are
unpaired , or single.

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3. To implement this process, our set strands have short ends that remain
unpaired with the machine.

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adj.
1. of the remaining member of a pair, of socks e.g.
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unpaired
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unpaired electron
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unpaired nucleon
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unpaired neutron
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unpaired electrons
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