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Meaning of starting block

start'ing block"

Pronunciation: [key]
— Track. Track.
  1. a device used by runners, esp. sprinters, for increasing their speed off the mark, consisting of a metal or wooden frame, usually secured to the ground at both ends, with adjustable, triangular-shaped blocks on each side for bracing the feet.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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