n. The condition or mode of being individual.n. The particular or distinctive character of an individual; that quality, or aggregate of qualities, which distinguishes one person or thing from another; idiosyncrasy: as, a person of marked individuality.n. A personality; a personage; an individual.n. The existence, efforts, interests, or concerns of the individual as distinguished from the interests or concerns of the community.n. In biology:n. Physiological completeness or independence; the ability of an organism to perform its normal functions or live out its life without the cooperation of others.n. Structural independence, or homology with or morphological equivalence to a physiological individual.n. The uniqueness of a living being, or its difference from others of its kind and from the rest of nature. It is in this sense that the offspring is said to inherit the individuality or constitution of a parent.