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Webster's 1828 Dictionary

PUNCTUATED

pp. Pointed. 1. Having the divisions marked with points.

 

New American Oxford Dictionary

punctuated equilibrium

punc tu at ed e qui lib ri um ▶noun Biology the hypothesis that evolutionary development is marked by isolated episodes of rapid speciation between long periods of little or no change.

 

Oxford Dictionary

punctuated equilibrium

punc ¦tu |ated equi |lib ¦rium ▶noun [ mass noun ] Biology the hypothesis that evolutionary development is marked by isolated episodes of rapid speciation between long periods of little or no change.