SEBI Act definitions clarify key regulatory terms and cross-references for securities regulation and regulatory bodies. Section 2 supplies foundational definitions for the Act by defining the Board, Chairman, members and specialised member roles, institutions such as the Fund and Reserve Bank, and rulemaking terms like notification, prescribed, and regulations. It further provides that terms undefined in this Act but defined in specified securities statutes have the meanings assigned in those statutes, and notes amendments that add definitions for collective investment schemes and certain regulatory authorities.