caste

印度的种姓制度, (排他的)社会团体

social status or position conferred by a system based on class; (Hinduism) a hereditary social class among Hindus; stratified according to ritual purity; a social class separated from others by distinctions of hereditary rank or profession or wealth; in some social insects (such as ants) a physically distinct individual or group of individuals specialized to perform certain functions in the colony