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.
Definition of dimension for English Language Learners. : the length, width, height, or depth of something : a measurement in one direction (such as the distance from the ceiling to the floor in a room) : the amount or number of things that something affects or influences.