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thumb index Definition

thumb index

noun

an index to the sections or divisions of a reference book, consisting of a series of rounded notches cut in the fore edge of a book with a labeled tab at the base of each notch

thumb index Related Forms
thumb′·-in′dex transitive verb

Browse dictionary entries near thumb index

  1. ‹ thumb
  2. ‹ thulium
  3. ‹ thulia
  4. ‹ Thule
  5. ‹ thuja
  6. ‹ thuggee
  7. ‹ thug
  8. ‹ thud
  9. ‹ Thucydides
  10. ‹ Thu
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