the sun at a maximum of solar activity, occurring every 11 years.
solar activity, superimposed on an unchanging background.
Praise the SunRead more in this article about some frequently asked questions and fun facts related to our definitions.
Active vs. Passive Voice: Hear and Be HeardFirst, a quick overview, in case all you need is a reminder: In active voice, the subject performs the action of the verb. In passive voice, the subject receives the action of the verb. If you feel like you need a little more than that, keep reading. Passive Voice The subject of a sentence is the person or thing that sentence is about. You can …
- active safety,
- active service,
- active shooter,
- active site,
- active splint,
- active transport,
- active vocabulary,
- active voice,
Origin of active sun
First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019