19-letter words starting with in
- intermediate-acting — (of a drug) intermediate in its effects between long- and short-acting drugs
- internal conversion — the emission of an electron by an atom with an excited nucleus, occurring as a result of the transfer of energy from the nucleus to the electron.
- internal hemorrhoid — Usually, hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid)
- internal resistance — the resistance within a battery, or other voltage source, that causes a drop in the source voltage when there is a current.
- internal translator — (language, mathematics) (IT) An early compiler for mathematics developed by A.J. Perlis et al at Carnegie Tech ca 1957. IT was originally written for the Burroughs 205, then the IBM 650. IT was the forerunner of RUNCIBLE, GATE, CORRELATE and GAT. IT source code was converted to PIT, thence to SPIT. IT-2 produced machine language directly, IT-3 developed at Carnegie added double-precision floating-point.
- internal-combustion — of or relating to an internal-combustion engine.
- international pitch — diapason normal pitch.
- international style — the general form of architecture developed in the 1920s and 1930s by Gropius, Le Corbusier, Mies van der Rohe, and others, characterized by simple geometric forms, large untextured, often white, surfaces, large areas of glass, and general use of steel or reinforced concrete construction.
- internet relay chat — (chat, messaging) (IRC) /I-R-C/, occasionally /*rk/ A client-server chat system of large (often worldwide) networks. IRC is structured as networks of Internet servers, each accepting connections from client programs, one per user. The IRC community and the Usenet and MUD communities overlap to some extent, including both hackers and regular folks who have discovered the wonders of computer networks. Some Usenet jargon has been adopted on IRC, as have some conventions such as emoticons. There is also a vigorous native jargon (see the entry for "chat"). The largest and first IRC network is EFNet, with a smaller breakaway network called the Undernet having existed since 1992, and dozens of other networks having appeared (and sometimes disappeared) since. See also nick, bot, op.
- internuncial neuron — interneuron
- interpretive centre — (at a place of interest, such as a country park, historical site, etc) a building or group of buildings that provides interpretation of the place of interest through a variety of media, such as video displays and exhibitions of material, and, often, includes facilities such as refreshment rooms and gift shops
- interquartile range — the range of values of a frequency distribution between the first and third quartiles.
- interrogation point — question mark.
- intersecting arcade — interlacing arcade.
- interstellar medium — the matter occurring between the stars of our Galaxy, largely in the spiral arms, and consisting mainly of huge clouds of ionized, neutral, or molecular hydrogen
- interval estimation — the process of estimating a parameter of a given population by specifying an interval of values and the probability that the true value of the parameter falls within this interval.
- intervertebral disc — any of the cartilaginous discs between individual vertebrae, acting as shock absorbers
- intervertebral disk — the plate of fibrocartilage between the bodies of adjacent vertebrae.
- intracutaneous test — a test for immunity or allergy to a particular antigen by observing the local reaction following injection of a small amount of the antigen into the skin.
- intrauterine device — any small, mechanical device for semipermanent insertion into the uterus as a contraceptive. Abbreviation: IUD.
- introduction agency — a company whose business is to match romantic partners for a fee
- invasion of privacy — an encroachment upon the right to be let alone or to be free from publicity.
- inver grove heights — a town in SE Minnesota.
- investment compound — investment (def 11).