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.
(Athletics (Track & Field)) athletics a high-jumping technique in which the body is parallel with the bar and the legs straddle it at the highest point of the jump. 11. (Card Games) (in poker) the stake put up after the ante in poker by the second player after the dealer.