Posted in Dictionary, Health & Medicine, Science B:I stands for bioactive to immunoreactive B:I stands for bioactivity to immunoactivity B:I stands for biological to immunological B:I stands for biopotency to immunopotency B:I Share Pinterest Tweet Whatsapp Post navigation B4UCB CLL Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.