noun. a disease of plants characterized by the gradual dying of the young shoots starting at the tips and progressing to the larger branches.
- back (English)
- bak (Middle English (1100-1500))
- die (English)
- dien (Middle English (1100-1500))
Example sentences of the word dieback
1. Noun, singular or mass
Frost can lead to leaf dieback and rot, especially if the tillandsias remain too wet when cold.
Zinnias continue producing new flower buds until plants dieback in the fall.
3. Verb, base form
Betula pendula is susceptible to dieback, a disease that causes damage to several species of birch trees.