“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 Sciences26Pharmacology, Toxicology and Pharmaceutics8Materials Science7Immunology and Microbiology5Science: Physiology: Animal biochemistry1Science: Zoology1