15-letter words containing a, r, c, f, o
- fourth official — In football, the fourth official is an official who assists the referee and assistant referees from the side of the pitch.
- fovea centralis — a small pit or depression at the back of the retina forming the point of sharpest vision.
- fractional note — a banknote in a denomination smaller than the standard unit of currency
- fractionalizing — Present participle of fractionalize.
- franco-american — an American of French or French-Canadian descent.
- french marigold — a composite plant, Tagetes patula, of Mexico, having yellow flowers with red markings.
- french togoland — a former United Nations Trust Territory in W Africa, administered by France (1946–60), now the independent republic of Togo
- friend at court — a friend in a position of influence or power who may advance one's interests, especially a helpful person who is close to someone in authority.
- frontal cyclone — any extratropical cyclone associated with a front: the most common cyclonic storm.
- fructifications — Plural form of fructification.
- fusospirochetal — Relating to fusospirochetes.
- gale-force wind — a wind of force seven to ten on the Beaufort scale or from 45 to 90 kilometres per hour
- general officer — an officer ranking above colonel.
- goal difference — the number of goals scored by a team minus the number of goals it has conceded
- grace-and-favor — noting a residence owned by a noble or sovereign and bestowed by him or her upon some person for that person's lifetime.
- granitification — the process or action of forming into granite
- grecian profile — a profile distinguished by the absence of the hollow between the upper ridge of the nose and the forehead, thereby forming a straight line.
- hacking x for y — [ITS] Ritual phrasing of part of the information which ITS made publicly available about each user. This information (the INQUIR record) was a sort of form in which the user could fill out various fields. On display, two of these fields were always combined into a project description of the form "Hacking X for Y" (e.g. ""Hacking perceptrons for Minsky""). This form of description became traditional and has since been carried over to other systems with more general facilities for self-advertisement (such as Unix plan files).
- hausdorff space — a topological space in which each pair of points can be separated by two disjoint open sets containing the points.
- heralds' office — the official heraldic authority of Scotland.
- holding furnace — a small furnace for holding molten metal produced in a larger melting furnace at a desired temperature for casting.
- holiday traffic — increased road traffic during holiday periods and public holidays
- hydrofracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
- hyperfunctional — of or relating to a function or functions: functional difficulties in the administration.
- hyperweak force — a hypothetical force that transforms quarks into leptons and vice versa at high energies.
- interfoliaceous — situated between leaves, especially opposite leaves.
- kirchhoff's law — the law that the algebraic sum of the currents flowing toward any point in an electric network is zero.
- lake-of-lucerne — a canton in central Switzerland. 576 sq. mi. (1490 sq. km).
- law-enforcement — of police, anti-crime
- leapfrog attack — Use of userid and password information obtained illicitly from one host (e.g. downloading a file of account IDs and passwords, tapping TELNET, etc.) to compromise another host. Also, the act of TELNETting through one or more hosts in order to confuse a trace (a standard cracker procedure).
- legacy software — legacy system
- liaison officer — a person who liaises between groups or units
- limiting factor — Physiology. the slowest, therefore rate-limiting, step in a process or reaction involving several steps.
- linear function — linear transformation.
- long-sufferance — long-suffering.
- make certain of — to ensure (that one will get something); confirm
- make tracks for — to go or head towards
- malconformation — Imperfect, disproportionate, or abnormal formation; disproportion of parts.
- medical officer — a doctor of medicine who serves in the armed forces in a medical capacity
- microfiltration — Filtration through a microporous membrane.
- micromicrofarad — picofarad. Symbol: μμF.
- microsoft basic — (language) (MS-BASIC) A dialect of BASIC from Microsoft, originally developed by Bill Gates in a garage back in the CP/M days. It was originally known as GWBasic, then QBASIC and finally MS-BASIC. When the MS-DOS operating system came out, it incorporated the GWBASIC.EXE or BASICA.EXE interpreters. GWBASIC ("Gee Whiz") incorporated graphics and a screen editor and was compatible with earlier BASICs. QBASIC was more sophisticated. Version 4.5 had a full screen editor, debugger and compiler. The compiler could also produce executable files but to run these a utility program (BRUN44.EXE) had to be present. Thus source code could be kept private. From DOS 5.0 or 6.0 onward, MS-BASIC was standard. Version 1.1 produced stand-alone executables and could display graphics.
- moccasin flower — the lady's-slipper.
- molecular knife — a segment of genetic material that inhibits the reproduction of the AIDS virus by breaking up specific areas of the virus's genes.
- multiple factor — polygene.
- myofibroblastic — Relating to myofibroblasts.
- nanofabrication — the design and manufacture of products and structures, especially electronic devices, with dimensions measured in nanometers.
- narcotrafficker — One who traffics in illegal narcotics.
- non-conformance — lack of conformity.
- non-enforceable — to put or keep in force; compel obedience to: to enforce a rule; Traffic laws will be strictly enforced.