1. Plural of plage; bright regions on the sun's surface visible in certain wavelengths of light, associated with sunspots and solar activity.
Usage: astronomy; technical
2. Plural of plage; a beach or sandy shore, especially in French-speaking regions.
Usage: chiefly French

Examples

• Astronomers observed bright plages surrounding the sunspot through the solar telescope.
• The solar plages indicate regions of intense magnetic activity on the sun.
• During the solar maximum, numerous plages become visible in ultraviolet images.
• The plages on the sun's surface are hotter than the surrounding photosphere.
• Scientists study plages to better understand solar weather and its effects on Earth.