accessory nucleus
nounMedical Definition of accessory nucleus
1
: spinal accessory nucleus
The accessory nucleus is located at spinal levels C1 to about C5/C6 in the lateral portion of the anterior horn.— Duane E. Haines, Lippincott's Illustrated Q&A Review of Neuroscience, 2010
2
: accessory olivary nucleus
Forelimb stimulation also activated contralateral sites in the dorsal accessory nucleus of the inferior olive …— E. M. Santori et al., Journal of Neuroscience, 1 Feb. 1986