Characterized by a caste system and belief in reincarnation

• A complex of beliefs and values and customs including worship of many gods especially the Trimurti composed of Brahma the Creator
• And Shiva the destroyer
• Vishnu the preserver
• The dominant religion of India

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Hindooism \Hin"doo*ism\, Hinduism \Hin"du*ism\, n. The religious doctrines and rites of the Hindus; Brahmanism.