Definition
callose
adjective
- having calluses; hardened or thickened, especially of skin
noun
- a polysaccharide substance deposited in plant cell walls, especially in sieve tubes
Usage: botany; technical
Examples
- The guitarist's fingers became callose from years of practice.
- Manual laborers often develop callose hands from repetitive work.
- The callose deposits in the plant's phloem help regulate nutrient transport.
- His callose skin showed the wear of decades spent outdoors.
- Callose formation in sieve plates is a natural plant response to injury.