“2-yr mean citedness” is the OpenAlex field summary_stats.2yr_mean_citedness (CC0): mean citations per paper over a two-year window. It is a raw bibliometric field, not a journal rating, and is not used for default ranking.
Agricultural and Biological Sciences50Biochemistry, Genetics and Molecular Biology38Agriculture: Animal culture: Veterinary medicine1Social Sciences: Industries. Land use. Labor: Special industries and trades: Agricultural industries1