e-tutor.com - Online tutoring, learning, and homeschooling resources      Home    Enroll    Tour    Contact Us    Graphing Calculator         Dictionary Home    Index    About   
 
     
 

Definition of 'half-life'

Noun

  1. the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
       Synonyms: half life


Get this dictionary without ads as part of the e-Tutor Virtual Learning Program.