procto-, proct-

(Greek: anus, rectum)

proctocolpoplasty
proctodynia
Pain at the anus, or in the rectum.
proctologist
proctology
proctoparalysis
proctoperineoplasty
Plastic surgery of the anus and perineum.
proctophobia; rectophobia
An intense fear of pain experienced by those who suffer with a rectum disease or mental apprehension about such a disease.
proctorrhagia
proctoscope
1. An instrument consisting of a tube or speculum equipped with a light, used to examine the rectum.
2. A tubular medical instrument with an integral light source, used for examining the anal canal and rectum.
proctoscopy
A visual examination of the rectum and the end of the colon with a proctoscope.

The examination is usually done prior to rectal surgery, and it may be a part of the physical examination of a patient with hemorrhoids, rectal bleeding, or other symptoms of a rectal disorder.

proctosigmoidectomy
Surgical excision of the anus, rectum, and sigmoid flexure.
proctostasis
proctotomy
protology, protologic
1. The study of origins and first things.
2. The science of the beginnings of things; for example, the mythology of primitive tribes.
proton accelerator
A particle accelerator which accelerates protons to high energies, as opposed to one which accelerates heavier ions or electrons.