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The Collaborative International Dictionary
highly-developed

highly-developed \highly-developed\ adj.

  1. very complex or intricate; -- used especially of technology.

    Syn: advanced.

  2. having most of its industrial production in the most modern state; -- used of countries and societies. Contrasted with undeveloped or developing.

    Syn: industrialized, advanced, industrial.

WordNet
highly-developed

adj. (used of societies) having high industrial development; "developed countries" [syn: developed]