Webster's English Dictionary

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maturity

ma.tu.ri.ty \m*-'t(y)u.r-*t-e- also -'chu.r-\ n 1: the quality or state of 
   being mature; esp : full development  2: termination of the period that an 
   obligation has to run  3: the second of the three principal stages in a 
   cycle of erosion or of oth er geologic change