of, related to, intended for or involving the anusanal thermometeran anal examinationanal sex
(psychoanalysis) of the stage in psychosexual development when the child's interest is concentrated on the anal region.
(psychology) of a person, obsessed with neatness, accuracy, compulsiveness and stubbornness, supposedly from not having progressed beyond the anal stage.Please don't touch his furniture, as he can get very anal about things like that.