effective area of an orifice
61Sex positions — are positions which people may adopt during or for the purpose of sexual intercourse or other sexual activities. Sexual acts are generally described by the positions the participants adopt in order to perform those acts. Though sexual intercourse …
62Female genital cutting — (FGC), also known as female genital mutilation (FGM), female circumcision or female genital mutilation/cutting (FGM/C), refers to all procedures involving partial or total removal of the external female genitalia or other injury to the female… …
63Radiation poisoning — Radiation poisoning, also called radiation sickness or a creeping dose , is a form of damage to organ tissue due to excessive exposure to ionizing radiation. The term is generally used to refer to acute problems caused by a large dosage of… …
64Colorectal cancer — Classification and external resources Diagram of the lower gastrointestinal tract ICD 10 C …
65Nanoparticle — In nanotechnology, a particle is defined as a small object that behaves as a whole unit in terms of its transport and properties. Particles are further classified according to size[1] : in terms of diameter, coarse particles cover a range… …
66Hawker Hurricane variants — The Hawker Hurricane was a British single seat fighter aircraft designed and predominantly built by Hawker Aircraft Ltd. Some versions were built in Canada by the Canada Car and Foundry Co Ltdflagicon|United Kingdom British VariantsHurricane Mk I …
67welding — Technique for joining metallic parts, usually through the application of heat. Discovered in the 1st millennium AD during attempts to manipulate iron into useful shapes, the technique produced a strong, tough blade. Welding traditionally involved …
68Tracheal intubation — Intervention Anesthesiologist using the Glidescope video laryngoscope to intubate the trachea of a morbidly obese elderly person with challenging airway anatomy …
69Traditional Chinese medicine — Alternative medical systems Traditional Chinese medicin …
70Mendelevium — fermium ← mendelevium → nobelium Tm ↑ Md ↓ (Upu) …
