- the rounded seed-bearing capsule of a cotton or flax plant
- Boll or Böll is a German surname. Notable people with the surname include: * Buzz Boll (1911–1990), Canadian ice hockey player * Don Boll (1927–2001), American football player * Ernst Boll (1817–1868), German naturalist and historian
* Fabian Boll (born 1979), German football player
* Franz Boll ...
- Protein boule-like is a protein that in humans is encoded by the BOLL gene.
- (BOLLED) [Ex.9: 31] Poded or capsuled seeds of a plant. [From boll]
- looked after power looms in the weaving industry
- the heaped measure of that name, most commonly equivalent to six bushels, e.g., boll's oatmeal (measures of oatmeal), bear meal (barley meal), victual (grain generally). Also a valuation of land according to the quantity of bolls it produced
- an old Scots measure, used for dry goods
- a seed pod, especially on the cotton plant
- The fruiting structure of a cotton plant. It is made up of separate compartments called locks, in which cotton seeds and lint grow.