- Moving backward.
- Degenerating; reversing the normal order of growth and development.
- Used in neuroscience to describe distal-proximal flow, movement, or transport in an axon toward its cell body, or degeneration of an axon proximal to a point of injury, such degenerative changes may extend to, and include, the cell body.
[L. retrogradus, fr. retro- + gradior, to go]
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Examples: glitazone, GI cocktail, etc.