Legal Definition
A formal requirement under the Securities Act of the Securities Exchange Act that mandates that a company seeking to offer securities (such as stocks or bonds) must file with the relevant regulatory body, typically the Securities and Exchange Commission (SEC), to provide a complete and accurate disclosure of the terms of the offering before the securities can be sold to investors.
Plain-English Translation
Imagine a company wants to sell something new to people. Before they can sell it, they have to fill out a special form with the government that says exactly what the thing is, so everyone knows the rules and details about it.