The process whose specific outcome is the progression of the hypoglossal nerve over time, from its formation to the mature structure. This motor nerve innervates all the intrinsic and all but one of the extrinsic muscles of the tongue. [ GOC:cls https://www.worldcat.org/search?q=bn%3A0838580343 GOC:dgh GOC:jid http://purl.obolibrary.org/obo/go/references/0000021 GOC:dph ]
Synonyms: cranial nerve XII development