Classical conditioning has 2 different meanings across 1 category:
conditioning that pairs a neutral stimulus with a stimulus that evokes a reflex; the stimulus that evokes the reflex is given whether or not the conditioned response occurs until eventually the neutral stimulus comes to evoke the reflex
A learning process in which a previously neutral stimulus (such as a bell) is paired with a potent stimulus (such as food in the case of a dog), so that the neutral stimulus comes to elicit a conditioned response (salivation) similar to the one elicited by the potent stimulus.