Definitions

1. noun

a seed head of a plant, especially a grass or cereal, that has formed but not yet split

“The field was filled with bolls of cotton ready to be harvested.”

2. verb

to form seed heads on a plant, especially a grass or cereal

“The crop bolls early due to the recent drought.”

3. verb

to form a seed head or boll on a plant

“The stalk will boll in a few weeks.”