Endo may refer to: Endo or stoppie, a motorcycle and bicycle trick in which the back wheel is lifted by abruptly applying the front brake Endo people, an ethnic group in Kenya Endo language, the native language of the Endo people Endo (band), a nu-metal band Endō, a Japanese surname Endō Shōta, a Japanese professional Sumo wrestler Endo International, a company specializing in drugs for pain management Ex parte Endo, a 1944 United States Supreme Court decision Endodontics, field of dentistry Endo contractualization, a term for short-term employment in the Philippines. As a prefix Endo, a prefix from Greek ἔνδον endon meaning "within, inner, absorbing, or containing" Endoscope, an implement used in minimally invasive surgery Endometriosis, a disease that relates to a person's internal organs Endogamy, the practice of marrying within a specific ethnic group, class, or social group Endo-exo isomerism, in chemistry, a specific stereochemical relationship in molecular geometry Endomorphism, in mathematics, a homomorphism from a mathematical object to itself Endogenous, meaning "proceeding from within". In biology, endogenous substances are those that originate from within an organism, tissue, or cell. Endogeneity (disambiguation), the property of being influenced within a system Endoskeleton Endocannibalism, a practice of eating the flesh of a dead human being from the same community. For other possible words, see As an acronym, abbreviation or nickname ENDO, name of the annual meeting and conference of The Endocrine Society Endo, short for 'endodontic root treatment' in dentistry, otherwise known as a root canal Endo, a cycling trick also known as a stoppie, after the possible outcome of flipping "end-over-end" if performed incorrectly Endo, a slang abbreviation in cycling for an "end over end" accident Endo, a nickname for marijuana Endo, short for endometriosis See also Ecto-, a prefix meaning "outside" ex- or Exo-, a prefix meaning "outer"