1. A phosphorescent light produced by certain fungi growing on decaying wood, often seen as a ghostly glow in forests at night.
Usage: Usually used in plural or as a mass noun; Also called will-o'-the-wisp or jack-o'-lantern in some contexts

Examples

• The hikers spotted foxfires glowing faintly among the rotting logs on the forest floor.
• On damp autumn nights, foxfires can appear like tiny lanterns in the woods.
• The eerie foxfires were caused by luminescent fungi, not supernatural activity.
• Children in the region grew up hearing stories about foxfires dancing through the swamp.
• Foxfires are most visible in complete darkness and humid conditions.