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Medical Definition of Olivocerebellar tract
1. A large group of loosely arranged fibre fascicles emerging from the hilus of the olivary nucleus, crossing to the opposite side of the medulla oblongata through the stratum interolivare lemnisci and the contralateral olive, and joining the restiform body, the larger part of the contralateral inferior cerebellar peduncle; its fibres terminate in all parts of the cerebellar cortex as climbing fibres. Synonym: tractus olivocerebellaris. (05 Mar 2000)