1. third-person singular simple present indicative form of 'extinct'; to cause to cease existing or to make extinct
Usage: rare; 'extinct' is primarily used as an adjective; when used as a verb, it is archaic or highly formal

Examples

• The new conservation law extincts the practice of hunting endangered species.
• Pollution extincts many marine habitats each year.
• The policy extincts old regulations in favor of modern standards.