Definition

The part of a planet that is illuminated by the sun, where it is daytime.

Example

The dayside of the Earth experiences sunlight while the nightside is dark.

Conversation

Did you see the picture of the planet's dayside during the presentation?

Yeah, it looked amazing with all that sunlight.

I love how vibrant everything looks on the dayside.

Definitely! It makes you appreciate the beauty of space.

Synonyms & Antonyms

Root Explanation

Dayside → It is formed from "day" (from Old English "dæg", meaning the period of light between sunrise and sunset) and "side" (from Old English "side", meaning a surface or aspect). The word "dayside" refers to the side of an object, such as a planet, that is illuminated by the sun during the day.

Memory Tip

Think of the 'day' as the period of light and 'side' as a surface — so the dayside is the surface that is lit up during the day.

Visually Confused Words