solar cycle


nounAstronomy.
  1. the variation of sunspots, prominences, flares, and other solar activity through an 11-year cycle.

  • Also called solar activity cycle.

Words Nearby solar cycle

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use solar cycle in a sentence

  • This period is called the dominical or solar cycle, and restores the first day of the year to the same day of the week.

    Our Calendar | George Nichols Packer
  • The solar cycle is a period of time after which the same days of the year recur on the same days of the week.

    Our Calendar | George Nichols Packer
  • Cycles used in chronology are three: The solar cycle, the lunar cycle, and the cycle of indiction.

    Our Calendar | George Nichols Packer