: to bring about at an earlier time: as
a : to advance (the maturity date of a security agreement) so that payment of the debt in full is due immediately see also acceleration clause
b : to cause (a future interest in property) to vest by removing the preceding interests (as by failure or premature termination)
: to enforce an acceleration clause [held that the creditor's right to was suspended "J. J. White and R. S. Summers"]
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.