white space
n.— «White space—a high-growth or unserved market or outside-the-box business opportunity.» —“Increased pay gets devoured by inflation” by Diane Stafford Kansas City Star (Kan., Mo.) Nov. 23, 2004. (source: Double-Tongued Dictionary)
Further reading
Asthenosphere, a geologist’s term for the molten layer beneath the earth’s crust, sparks a journey that stretches all the way from ancient Greece to the author of Uncle Tom’s Cabin. Plus: What the heck is a dogberg? It’s when...
Some TV commercials launch catchphrases that stick around long after the original ads. The exclamation Good stuff, Maynard! is still a compliment almost 40 years after it was used in a commercial for Malt-O-Meal hot cereal. And: what do you call...