/ Dictionary / Index D DNA probe: Meaning and Definition of Find definitions for: DNA probe Pronunciation: [key] — Biotech. Biotech. a technique for identifying a segment of DNA, using a known sequence of nucleotide bases from a DNA strand to detect a complementary sequence in the sample by means of base pairing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. DNA polymerase DNase Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language