transmit the sensory impulse to the appropriate part of the brain or spinal cord for interpretation and processing; also known as association neurons.
depth. 1  the distance from the top downward, from the surface inward, or from front to back. 2  perspective, as in a painting. 3  the quality or condition of being deep; deepness; specif., 4  intensity, as of colors, silence, or emotion.
The depth of this pool is six feet. noun. Depth is defined as the distance from top down or front to back, or the intensity of color or sound. An example of depth is a swimming pool being six feet deep. An example of depth is the darkness of a purple dress.