D defs.my
Entry 2 senses Webster, 1913

Depletion

/dĭp-lēsh'-ən/ · De·ple·tion · IPA /dɪˈpliːʃən/
01 n. The act of depleting or emptying.
  1. 1.
    The act of depleting or emptying.
  2. 2.
    the act or process of diminishing the quantity of fluid in the vessels by bloodletting or otherwise; also excessive evacuation, as in severe diarrhea.(Med.)