Original half-life Synonyms

Definitions for Original


  • (adjective) coming before all others in time or order
  • (adjective) having the skill and imagination to create new things
  • (adjective) not known or experienced before

Definitions for Half-life


  • (noun) 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)