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Definition of Probe

Probe: 1: In surgery, a probe is a slender flexible rod with a blunt end used to explore, for example, an opening to see where it goes. 2: In molecular genetics, a probe is a labeled bit of DNA or RNA used to find its complementary sequence or locate a particular clone.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=5052
Last Editorial Review: 10/30/2013

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