1. (adjective) tending to unify

• unifying

2. (adjective) of a nerve fiber or impulse originating outside and passing toward the central nervous system

• receptive
• sensory

1. (adjective) tending to move toward a center

• inward-developing
• inward-moving

2. (adjective) tending to unify

• centralising
• centralizing

3. (adjective) of a nerve fiber or impulse originating outside and passing toward the central nervous system

• afferent

1. (adjective) tending to move toward a center

• centrifugal

1. (adjective) of a nerve fiber or impulse originating outside and passing toward the central nervous system

• pick up
• receive