24-letter words containing um
- ammonium chromic sulfate — chrome alum (def 1).
- autism spectrum disorder — any of various disorders, as autism and Asperger syndrome, commonly manifesting in early childhood and characterized by impaired social or communication skills, repetitive behaviors, or a restricted range of interests.
- autonomous system number — (networking, routing) (ASN) Used for routing on the Internet.
- avian pneumoencephalitis — Newcastle disease.
- azimuthal quantum number — the quantum number that designates the orbital angular momentum of a particular quantum state of an electron in an atom and that assumes integral values from zero to one less than the value of the principal quantum number.
- caeremoniale episcoporum — the liturgical book, used by bishops, containing regulations and prescriptions that are authoritative in matters not covered in the missal or other service books.
- compressed petroleum gas — a gas liquefied by compression, consisting of flammable hydrocarbons, as propane and butane, obtained as a by-product from the refining of petroleum or from natural gas: used chiefly as a domestic fuel in rural areas, as an industrial and motor fuel, and in organic synthesis, especially of synthetic rubber.
- conservation of momentum — the principle that the total linear or angular momentum in any isolated system is constant, provided that no external force is applied
- dibasic sodium phosphate — sodium phosphate (def 2).
- dibasic-sodium-phosphate — Also called monobasic sodium phosphate. a white, crystalline, slightly hygroscopic, water-soluble powder, NaH 2 PO 4 , used chiefly in dyeing and in electroplating.
- document type definition — (text, standard) (DTD) The definition of a document type in SGML or XML, consisting of a set of mark-up tags and their interpretation.
- edetate calcium disodium — a chelating agent, C 10 H 12 CaN 2 Na 2 O 8 , used in medicine to treat lead poisoning.
- effective number of bits — (hardware) (ENOB) An indication of the quality of an analog to digital converter. The measurement is related to the test frequency and the signal-to-noise ratio.
- electromagnetic spectrum — the complete range of electromagnetic radiation from the longest radio waves (wavelength 105 metres) to the shortest gamma radiation (wavelength 10–13 metre)
- human potential movement — a movement in psychology that includes group therapy, encounter therapy, primal therapy, etc., is based mainly on Freudian and Gestalt psychology, and is aimed at self-realization
- human-computer interface — (software, hardware) (HCI) Any software or hardware that allows a user to interact with a computer. Examples are WIMP, command-line interpreter, or virtual reality. See also Human-Computer Interaction.
- katmai national monument — an area of natural wilderness in SW Alaska around the Valley of Ten Thousand Smokes, a volcanic region with numerous fumaroles; gained natural park status in 1980
- lady washington geranium — show geranium.
- lithium aluminum hydride — a white powder, LiAlH 4 , used chiefly as a chemical reducing agent, especially in pharmaceutical and perfume manufacturing.
- maximum lifetime benefit — The maximum lifetime benefit of a health insurance plan is the maximum amount of money that it will pay out.
- medium-scale integration — MSI.
- mitigating circumstances — conditions that lessen responsibility for a crime
- orbital angular momentum — the component of angular momentum of an electron in an atom or a nucleon in a nucleus, arising from its orbital motion rather than from its spin.
- portable document format — (file format) (PDF) The native file format for Adobe Systems' Acrobat. PDF is the file format for representing documents in a manner that is independent of the original application software, hardware, and operating system used to create those documents. A PDF file can describe documents containing any combination of text, graphics, and images in a device-independent and resolution independent format. These documents can be one page or thousands of pages, very simple or extremely complex with a rich use of fonts, graphics, colour, and images.
- potassium cobaltinitrite — a yellow, crystalline, slightly water-soluble powder, K 3 Co(NO 2) 6 , used as a pigment in oil and watercolor paints, and for coloring surfaces of glass, porcelain, etc.
- presumption of innocence — the rebuttable presumption of the innocence of the defendant in a criminal action in Anglo-Saxon jurisprudence, placing upon the prosecution the burden of proof of the defendant's guilt.
- principal quantum number — the nonnegative, integral quantum number that defines the stationary orbits in the Bohr model of the atom.
- pyrotraumatic dermatitis — hot spot.
- single premium insurance — Single premium insurance is insurance where all the premium is paid at once, in one payment.
- sodium hexametaphosphate — See under Calgon.
- to jump on the bandwagon — If someone, especially a politician, jumps or climbs on the bandwagon, they become involved in an activity or movement because it is fashionable or likely to succeed and not because they are really interested in it.
- total maximum daily load — A total maximum daily load is the amount of pollutants which are allowed to be discharged to the environment.
- trisodium orthophosphate — a sodium salt of orthophosphoric acid having the formula Na3PO4
- volume table of contents — (storage) (VTOC) /V-tock/ A special file on a disk, which contains a list of all the ordinary files on the disk and their addresses. Also called a directory. The term is used mostly with large mainframe disk drives. Storage administrators will often refer to the VTOC to obtain information on the number of files stored on a disk.
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