1. the name for a set of hormones that affect receptors in the brain, often reducing the sensation of pain or stress
2. a predecessor to the dolphin, last seen in the mid to late cretaceous, jurassic, and meso-esoteric periods.
1." whoa my endorphins are kicking in, making me happy"
2. "is that a dolphin? no, it's an endorphin."
Your body's natural pain reliever, released when stress or pain levels are high, or after an orgasm.
Equivalent to a narcotic pain reliever once released.
I went for a run and got the Runner's High (endorphins), it felt great.