23-letter words containing a, c, e, n
- have one's act together — anything done, being done, or to be done; deed; performance: a heroic act.
- have one's work cut out — to have as much work as one can manage
- have tickets on oneself — to be conceited
- health maintenance plan — A health maintenance plan is a health insurance policy that provides preventive care like vaccinations, doctor checkups, and screenings, for a prepaid fee.
- heaviside unit function — the function that is zero for any number less than zero and that is 1 for any number greater than or equal to zero.
- heterogeneous catalysis — Heterogeneous catalysis is catalysis in which the catalyst does not take part in the reaction that it increases.
- hexagonal cross-section — If a kelly has a hexagonal cross-section, it has a surface area with six equal sides, when looked at as if has been sliced through.
- hierarchical navigation — (web) On a web page, any type of menu whose hierarchical structure matches that of the site to which the page belongs. A hierarchical navigation menu allows the user to jump ("navigate") directly to a section of the site several levels below the top. The menu may present only a fixed number of levels rather than the whole structure.
- hire purchase agreement — an agreement between a seller and a buyer for the buyer to purchase something on hire purchase
- hook-and-ladder company — a company of firefighters equipped with a hook-and-ladder truck.
- human leukocyte antigen — HLA.
- human rights campaigner — a person who campaigns for human rights
- hunchback of notre dame — French Notre Dame de Paris. a novel (1831) by Victor Hugo.
- hypergeometric equation — a differential equation of the form, (x 2 − x) d 2 y / d 2 x + [(a+b +1) x−c ] dy/dx + abx =0, where a, b, and c are arbitrary constants.
- icosidodecadodecahedron — A polyhedron having 44 faces, 60 vertices, 120 edges, 12 self intersected faces and 12 nonconvex faces.
- identification bracelet — a bracelet, usually of metal links, having an identification plate for the name of the wearer.
- immunological tolerance — the absence of antibody production in response to the presence of antigens, usually as a result of previous exposure to the antigens
- in a class of one's own — If someone is in a class of their own, they have more of a particular skill or quality than anyone else. If something is in a class of its own, it is better than any other similar thing.
- in sack cloth and ashes — sacking.
- in someone's bad graces — elegance or beauty of form, manner, motion, or action: We watched her skate with effortless grace across the ice. Synonyms: attractiveness, charm, gracefulness, comeliness, ease, lissomeness, fluidity. Antonyms: stiffness, ugliness, awkwardness, clumsiness; klutziness.
- incontestability clause — a clause in a life-insurance or health-insurance policy stating that the insurer cannot contest the policy after a stated period of time.
- indeterminacy principle — uncertainty principle.
- indirect discrimination — discrimination by means of rules, regulations or procedures that may appear to be neutral, but which actually discriminate against certain groups of people.
- initial public offering — An initial public offering is the first offering of stock when a company goes public.
- inland marine insurance — insurance chiefly covering risks to goods and means of transportation involved in the transporting of goods overland or by inland waterways.
- integrated fire control — an electronic system that locates and tracks a target, computes the data, and employs a weapon to destroy it.
- interchange file format — (file format) (IFF, full name "EA IFF 1985") A generic file format published by Electronic Arts as an open standard. IFF is chunk-based and hierarchical so files can include other files. It is easily extensible and an all round Good Idea. An IFF file starts with one of the following "group IDs": 'FORM', 'LIST' or 'CAT '. This is followed by an unsigned 32-bit number of bytes in the remainder of the file. Then comes an ID that indicates which type of IFF file this is. The main image type is ILBM, audio is either AIFF or 8SVX, animations are ANIM etc. An IFF file will probably have a filename extension related to this file type stored in the file. The rest of the file is divided into chunks each of which also has a four-byte header and byte count.
- interfascicular cambium — cambium that develops between the vascular bundles.
- intermediate technology — technology which combines sophisticated ideas with cheap and readily available materials, esp for use in developing countries
- internal reconstruction — the hypothetical reconstruction of an earlier stage of a language or of some part of it, as its phonology, by deductions from irregularities in its present structure, as the reconstruction of a stage in English when certain instances of r were related to s in a systematic way by comparing the pair was:were to other pairs, as lose:forlorn.
- internet public library — (IPL) A project at the University of Michigan School of Information and Library Studies to provide an on-line, 24 hour public library, chaired by an assemblage of librarians and information industry professionals. The library aims to provide library services to a target audience estimated to number 1/4 of the entire American population by the end of the century. The Internet Public Library is scheduled to go on-line in March 1995. Among the first services will be on-line reference; youth services; user education; and professional services for librarians. Mailing list: [email protected]
- interval of convergence — an interval associated with a given power series such that the series converges for all values of the variable inside the interval and diverges for all values outside it.
- irish christian brother — Brother of the Christian Schools (def 2).
- islamic fundamentalists — Muslims who believe in, advocate or support a conservative adherence to literal or traditional interpretations of the Qu'ran and the Sunnah
- joint test action group —
- juan rodriguez cabrillo — Juan Rodríguez [rod-ree-ges] /rɒdˈri gɛs/ (Show IPA), (Joao Rodrigues Cabrilho) 1499?–1543, Spanish explorer, born in Portugal: discovered California.
- katmai new instructions — Streaming SIMD Extensions
- keep (a person) company — to stay with (a person) so as to provide companionship
- kick against the pricks — to hurt oneself by struggling against something in vain
- kinetic theory of gases — a theory that the particles in a gas move freely and rapidly along straight lines but often collide, resulting in variations in their velocity and direction. Pressure is interpreted as arising from the impacts of these particles with the walls of a container.
- knock into a cocked hat — a man's hat, worn especially in the 18th century, having a wide, stiff brim turned up on two or three sides toward a peaked crown. Compare bicorne, tricorn (def 2).
- lackland air force base — U.S. Air Force installation in SW central Texas, SW of San Antonio.
- large-scale integration — LSI.
- laughlin air force base — U.S. Air Force installation in SW Texas, SE of Del Rio.
- law enforcement officer — an official employee who prevents and detects crime and who maintains and upholds the police, such as a police officer, sheriff, customs officer etc
- lawrence livermore labs — Lawrence Livermore National Laboratory
- lead replacement petrol — a less toxic fuel introduced in 2000 for cars requiring leaded petrol
- least significant digit — the digit farthest to the right in a number. Abbreviation: LSD.
- light and shade surface — (in architectural shades and shadows) a surface in a plane tangent to the parallel rays from the theoretical light source, treated as a shade surface.
- like a headless chicken — disorganized and uncontrolled