glowline

noun
UK /ˈɡləʊ.laɪn/
US /ˈɡloʊ.laɪn/

A glowline is a bright line of light that shines in the dark.

The glowline on the path helped us see where to walk at night.


OTHER MEANINGS

2. A line drawn with glowing paint or tape to mark a safe route.

They put a glowline along the stairs so nobody would trip.

3. A streak of light seen in the sky or water at night.

A glowline shimmered across the lake under the moon.

4. A glowing border or outline around a screen or sign.

The phone case had a soft glowline around its edge.