anal sinus n.
Any of the grooves between the anal columns. Also called Morgagni’s crypt, rectal sinus.
- Anal sphincter
anal sphincter anal sphincter n. Either of the two sphincter muscles of the anus. See under external and internal sphincter muscle of anus.
- Anal stage
anal stage According to psychoanalysis, the second social and sexual stage of an infant’s development (after the oral stage), in which the infant learns to control bowel movements. Freudian psychology maintains that children gain pleasure from both passing and withholding their feces. Psychoanalysts believe that development of an anal personality is associated with frustration over […]
- Anal vein
one of several veins in the rear portion of the wing of an insect.
- Anal verge
anal verge anal verge n. The distal end of the anal canal, forming a transitional zone between the skin of the anal canal and the perianal skin.