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virus
Term | Definition |
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Virus | an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host. |
Host | an animal or plant on or in which a parasite or commensal organism lives. |
Parasite | an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense. |
Bacterial phase | a virus that infects bacteria |