#4: Umami

Definition:

a taste sensation that is meaty or savory and is produced by several amino acids and nucleotides

Examples:

"There was a wheel of parmesan that took me straight to umami heaven, and the biggest spears of steamed asparagus, massive broccoli crowns, sweet hearts of palm and a platter of some of the most gorgeous lettuce (I know, right?) I've ever seen kept me coming back for more." – Jessica Cickay, FinanceFoodie.com, November 5, 2012

About the Word:

Umami comes from the Japanese word meaning "savoriness; flavor." It first appeared in English in 1979, although the taste had been isolated and named seventy years earlier, by chemistry professor Dr. Kikunae Ikeda.