zeitgeber
n.— «All three of us redefined our terms, they a zeitgeber and I a synchronizer (as primary or secondary), respectively, as an external agent, usually a cycle that does not “give” time and merely synchronizes existing body time with its own.» —“Transdisciplinary unifying implications of circadian findings in the 1950s” by Franz Halberg Journal of Circadian Rhythms Sept. 24, 2003. (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...
How hot is it? Well, poet Dylan Thomas found lots of memorable ways to describe a heat wave. In one letter to a friend, he wrote that it was so hot “My brains are hanging out like a dog’s tongue.” And: pestering country music stars...