annals /ˈæn.əlz/ noun[plural only]3 •A relation of events in chronological order, each event being recorded under the year in which it happened.So ended this great siege, the most memorable in the annals of the British isles. It had lasted a hundred and five days — 1849 •Historical records; chronicles; history.It was one of the most critical periods in our annals. — 1780 •A periodic publication, containing records of discoveries, transactions of societies, etc.