SINCE 1828
pedal ganglion
nounDefinition of pedal ganglion
: either of a pair of ganglia in most mollusks that supply nerves to the muscles of the foot and that correspond to the subesophageal ganglia of many other invertebrates but are often far removed from the esophagus and joined to the central ganglia by long nerves
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Merriam-Webster unabridged
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