Who coined the term 'black hole'?

Believe it or not, although Karl Schwarzschild way back in 1916 discovered the solution in general relativity for the non-rotating form of this phenomenon, it wasn't until 1967 that someone bothered to coin an evocative term for it. That someone was the famous physicist, John Wheeler. Up until then, it was simply called a 'collapsar' or some other nondescript term by the theoreticians. Certainly few if any astronomers had as yet placed much stock in such an unusual class of physical object.

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