1. White-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
   - pyrethrum, Dalmatian pyrethrum, Dalmatia pyrethrum, Chrysanthemum cinerariifolium

Type of: herb, herbaceous plant

Part of: genus Tanacetum, Tanacetum

• National Association of Securities Dealers Automated Quotations
• national bank
• National Baseball Hall of Fame
• national capital
• national censorship
• National Climatic Data Center
• national debt
• national debt ceiling
• national flag
• National Geospatial-Intelligence Agency
• National Guard
• National Guard Bureau
• national holiday
• national income
• National Institute of Justice
• National Institute of Standards and Technology
• National Institutes of Health
• national insurance
• National Intelligence Community
• National Labor Relations Board
• national leader
• National Liberation Army
• National Liberation Front of Corsica
• National Library of Medicine
• national monument