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solar cycle
noun
Astronomy
.
the variation of sunspots, prominences, flares, and other solar activity through an 11-year cycle.
Also called
solar activity cycle.
Compare
sunspot cycle
.
Words nearby solar cycle
solar cells
,
solar chariot
,
solar cheilitis
,
solar collector
,
solar constant
,
solar cycle
,
solar day
,
solar eclipse
,
solar elastosis
,
solar energy
,
solar flare