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Trough may refer to: a person's state of energy throughout the day. Analogous to the electromagnetic wave use of the word trough. As a person's energy state or alertness fluctuates throughout the day, they may refer to themselves as at a peak (high energy state) or in a trough (low energy state).

In science[edit]

Other uses[edit]

See also[edit]

  • Trow, a type of cargo boat
  • Troff, a document processing system developed by AT&T for the Unix operating system
  • "Tropho-", a Greek root meaning to feed or grow