Definition of "reroll"

reroll

verb
third-person singular simple present rerolls, present participle rerolling, simple past and past participle rerolled
1. (transitive) To roll, or roll out, again.
2. (transitive, intransitive, dice games) To roll (dice) again.
  Quotations
  [T]he others worked preparing breakfast and re-rolling swags.
  1963, Arthur Upfield, The Lake Frome Monster, London: Pan Books, published 1969, page 21
3. (transitive, programming) To convert (an unrolled instruction sequence) back into a loop.
  Quotations
  Their procedure is to unroll the loop once, trace schedule the two iterations, and then reroll the loop into one.
  2012, Monica S. Lam, A Systolic Array Optimizing Compiler, page 143
4. (gaming) To try again for a different result.
noun
plural rerolls
1. (dice games) A situation in the rules of certain dice games where a player is given the option to reroll an undesirable roll of the dice.