Definitions

1. noun

A disease of lettuce and other plants, characterized by a browning or scorching of the leaves, especially along the edges.

“The gardener noticed a tipburn on the lettuce leaves and quickly treated it with a fungicide.”

2. verb

To cause (a plant’s leaves) to become discolored or damaged, typically by excessive heat or drought.

“The hot weather caused the farmer’s crops to tipburn, reducing the harvest.”