What is the meaning of Neoclassical?

Of pertaining to a style of architecture based on classical models, especially such a style of the 18th century.

Of or relating to various art styles, as in sculpture and ballet, inspired by older classical forms and conventions.

Being a recent construction based on older, classical elements.

Of or relating to an approach that focuses on the determination of prices, outputs, and income distributions in markets through supply and demand.

Ellipsis of neoclassical economist.

Source: wiktionary.org