: a soft usually white fibrous substance composed of the hairs surrounding the seeds of various erect freely branching tropical plants (genus Gossypium) of the mallow family and used extensively in making threads, yarns, and fabrics (as in surgical dressings)
: a plant producing cotton; especially: one grown for its cotton
Seed-hair fibre of various plants of the genus Gossypium, in the mallow family, native to most subtropical countries. The shrubby plants produce creamy white flowers, followed by small green seedpods (cotton bolls), which contain the seeds. Fibres growing from the outer skin of the seeds become tightly packed within the boll, which bursts open at maturity to reveal soft masses of the white to yellowish white fibres. Cotton is harvested when the bolls open. One of the world's leading agricultural crops, cotton is plentiful and economically produced, making cotton products relatively inexpensive. The fibres can be made into a diverse array of fabrics suitable for a great variety of apparel, home furnishings, and industrial uses. Cotton fabrics can be extremely durable and are comfortable to wear. Nonwoven cotton, made by fusing or bonding the fibres, is useful for making disposable products including towels, polishing cloths, tea bags, tablecloths, bandages, and disposable uniforms and sheets for hospital and other medical uses.