a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions
"The sudden burst of speed relied on ATP, the primary molecule providing immediate energy to his contracting muscles."
Initialism of adenosine triphosphate.
"The cell relies on ATP as its primary energy carrier to fuel metabolic processes."
In plain English: ATP is an energy-carrying molecule that powers almost every activity inside your cells so you can move and think.
"The athlete felt her ATP levels drop after running those final mile laps without stopping."
Initialism of Association of Tennis Professionals.
"The ATP tour features some of the world's best tennis players competing in prestigious tournaments."