1. the middle pages of a magazine that open out to form a large single page or double-page spread
2. a large photograph or illustration printed on the centerfold of a magazine

Examples

• The magazine featured a beautiful landscape photograph on the centerfold.
• She carefully removed the centerfold poster from the magazine.
• The centerfold displayed a detailed map of the national park.
• The art magazine’s centerfold showcased the painter’s latest work.
• He opened the magazine to reveal the colorful centerfold illustration.
• The centerfold contained a fold-out diagram of the solar system.