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A primary key whose value is unique across all relations is called a(n) :
Poison Ivy
A plant that causes an allergic skin reaction, characterized by itching, swelling, and red blisters, upon contact.
Secondarily Infected
A condition where a pre-existing wound or skin disruption becomes infected by bacteria or other pathogens, in addition to the initial cause.
Pediculosis Capitis
A head lice infestation affecting the scalp and hair.
Extra-Fine-Tooth Comb
A metaphor used to describe a very thorough and detailed examination or search.
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