sapstreak

noun

: a fungal disease of sugar maple caused by a fungus (Endoconidiophora virescens) and characterized by death of the crown from the top down and radial water-soaked reddish or gray streaks across the sapwood

Word History

Etymology

sap entry 1 + streak

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now