Are nectarine seeds edible?

Are nectarine seeds edible? References Eating a nectarine this afternoon, I found the pit was cracked open. Curious, I broke it apart and found an almond-like seed (or nut?) inside. I remember hearing that some almonds, or perhaps their relatives (stone fruit?), may be poisonous in their natural form. Do nectarines fall into that category? If so, is there some treatment I can give it to destroy the poison (and yet keep it good for food, and a delight to the eyes, and to be desired to make one wise)? Will I surely die?