15-letter words containing a, c, e, r, m
- interambulacral — relating to, or situated between, interambulacra
- interambulacrum — the area between two of an echinoderm's ambulacra
- interchangement — the act of interchanging
- intercomparison — mutual comparison
- internment camp — a prison camp for the confinement of enemy aliens, prisoners of war, political prisoners, etc.
- inverted commas — Inverted commas are punctuation marks that are used in writing to show where speech or a quotation begins and ends. They are usually written or printed as ' ' or " ". Inverted commas are also sometimes used around the titles of books, plays, or songs, or around a word or phrase that is being discussed.
- isolated camera — a television camera used to isolate a subject, part of a sports play, etc., for instant replay.
- isoperimetrical — having equal perimeters
- jerusalem cross — a cross whose four arms are each capped with a crossbar and often with a small Greek cross centered in each quadrant.
- judicial murder — the unjustified execution of the death penalty
- kalmyk republic — a constituent republic of S Russia, on the Caspian Sea: became subject to Russia in 1646. Capital: Elista. Pop: 292 400 (2002). Area: 76 100 sq km (29 382 sq miles)
- karaoke machine — a device that plays a prerecorded backing tape, to which people take it in turns to sing
- kelmscott manor — a Tudor house near Lechlade in Oxfordshire: home (1871–96) of William Morris
- keratoacanthoma — (pathology) A common low-grade malignancy of the skin.
- lambda particle — any of a family of neutral baryons with strangeness −1 or charm +1, and isotopic spin 0. The least massive member of the lambda family was the first strange particle to be discovered. Symbol: Λ.
- laptop computer — portable computer
- laryngectomized — having had one's larynx surgically removed by undergoing a laryngectomy
- laser chemistry — the use of a laser to initiate and control chemical reactions.
- laser machining — Laser machining is a process in which material is removed from a surface using light from a laser.
- latino-american — an American who is of Latin-American or Spanish origin
- law-enforcement — of police, anti-crime
- lithium citrate — a white crystalline solid sometimes used in the treatment of manic-depressive illness and mania. Formula: Li3C6H5O7
- liver complaint — an unspecified health problem concerning the liver
- lumbar puncture — Medicine/Medical. puncture into the arachnoid membrane of the spinal cord, in the lumbar region, and withdrawal of spinal fluid, performed for diagnosis of the fluid, injection of dye for imaging, or administration of anesthesia or medication.
- macaroni cheese — Macaroni cheese is a dish made from macaroni and cheese sauce.
- machinery steel — low-carbon steel that can be easily machined.
- mackerel breeze — a strong breeze
- mackinac bridge — a suspension bridge over the Straits of Mackinac, connecting the Upper and Lower peninsulas of Michigan: one of the longest suspension bridges in the world. 3800-foot (1158-meter) center span; 7400 feet (2256 meters) in total length.
- macro-structure — the gross structure of a metal, as made visible to the naked eye by deep etching.
- macroaggregated — in the form of a macroaggregate
- macroprudential — Of or pertaining to systemic prudence, especially to the strengths and vulnerabilities of financial systems.
- macrostructures — Plural form of macrostructure.
- magnetic course — a course whose bearing is given relative to the magnetic meridian of the area.
- magnetic mirror — a region in a magnetic bottle where the magnetic field increases abruptly, causing charged particles that enter it to be reflected.
- magnetic stripe — magnetic strip.
- magnetoelectric — of or relating to the induction of electric current or electromotive force by means of permanent magnets.
- magnetoreceptor — The part of an organism responsible for magnetoreception.
- make a horlicks — to make a mistake or a mess
- make certain of — to ensure (that one will get something); confirm
- make tracks for — to go or head towards
- malacopterygian — belonging or pertaining to the Malacopterygii (Malacopteri), a group of soft-finned, teleost fishes.
- man-made fabric — a type of fabric that is made artificially, such as polyester or rayon, rather than occurring naturally, like cotton or wool
- manasseh cutler — Manasseh, 1742–1823, U.S. Congregational clergyman and scientist: promoted settlement of Ohio; congressman 1801–05.
- marc andreessen — (person) The man who founded Netscape Communications Corporation in April 1994 with Dr. James H. Clark. Andreessen has been a director since September 1994. As an undergraduate at the University of Illinois in Champaign, Andreessen created the Mosaic web browser prototype with a team of students and staff at the university's National Center for Supercomputing Applications (NCSA). With a friendly, point-and-click method for navigating the Internet and free distribution to network users, NCSA Mosaic gained an estimated two million users worldwide in just over one year. Andreessen earned his Bachelor of Science degree in Computer Science at the University of Illinois in 1993.
- marching orders — military orders, esp to infantry, giving instructions about a march, its destination, etc
- marcus aurelius — Marcus, Marcus Aurelius.
- maria de medici — Marie de Médicis.
- marie de france — flourished 12th century, French poet in England.
- market research — investigation into consumers' needs
- market-research — to conduct market research on.