boon 1. n. 1. A benefit bestowed, especially one bestowed in response to a request. 2. A timely blessing or benefit: A brisk breeze is a boon to sailors. [Middle English.
Quantum leaps are the sole cause of the emission of electromagnetic radiation, including light, which occurs in the form of quantized units called photons. Ironically, when laymen use the term colloquially, they use it to describe large jumps in progress, when in reality a quantum leap is a very small change of state.
â¦ a new wrinkle whereby the exhaust gases are used to spin small turbines geared direct to the propeller shaft. quantum leap A sudden enormous step forward; an unexpected discovery or breakthrough. This expression is a physics term for the jumping of an electron from one energy state to another.