15-letter words containing ac
- jack the ripper — an unidentified murderer who killed at least seven prostitutes in London's East End between August and November 1888
- jack-in-the-box — a toy consisting of a box from which an enclosed figure springs up when the lid is opened.
- jack-o'-lantern — a hollowed pumpkin with openings cut to represent human eyes, nose, and mouth and in which a candle or other light may be placed, traditionally made for display at Halloween.
- jackass penguin — any of several boldly marked black and white penguins of the genus Spheniscus, especially S. demersus, of southern Africa, with a call resembling a donkey's bray.
- jacob ben asher — c1269–c1340, Hebrew commentator on the Bible and codifier of Jewish law.
- jacques cartier — Sir George Étienne [zhawrzh ey-tyen] /ʒɔrʒ eɪˈtyɛn/ (Show IPA), 1814–73, Canadian political leader: prime minister 1857–62, defense minister 1867–73.
- joseph jacquard — Joseph Marie [zhoh-zef ma-ree] /ʒoʊˈzɛf ma ri/ (Show IPA), 1752–1834, French inventor.
- juice extractor — device: squeezes juice from fruit
- kamikaze packet — Christmas tree packet
- karaoke machine — a device that plays a prerecorded backing tape, to which people take it in turns to sing
- kentish tracery — tracery, originating in Kent in the 14th century, having cusps with split ends.
- keratoacanthoma — (pathology) A common low-grade malignancy of the skin.
- knight bachelor — bachelor (def 3).
- lackadaisically — without interest, vigor, or determination; listless; lethargic: a lackadaisical attempt.
- lactovegetarian — Also called lactarian. a vegetarian whose diet includes dairy products.
- ladies'-tobacco — pussy-toes.
- laryngotracheal — of, relating to, or involving the larynx and trachea.
- laser machining — Laser machining is a process in which material is removed from a surface using light from a laser.
- 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
- level one cache — primary cache
- level two cache — secondary cache
- limiting factor — Physiology. the slowest, therefore rate-limiting, step in a process or reaction involving several steps.
- linalyl acetate — a colorless, water-insoluble liquid, C 12 H 20 O 2 , having a pleasant odor: used chiefly in perfumes, cosmetics, toilet water, and soap.
- linear-tracking — (of a tone arm) designed to move across a phonograph record in a straight line, instead of an arc, so that as the needle tracks the groove, its orientation remains unchanged.
- lira da braccio — a many-stringed musical instrument of the 15th and 16th centuries, played with a bow and used for polyphonic improvisation.
- locutionary act — the act of uttering a sentence considered only as such
- macaroni cheese — Macaroni cheese is a dish made from macaroni and cheese sauce.
- macassar strait — a strait between Borneo and Sulawesi (Celebes): naval engagement between the Allied and the Japanese 1942.
- machine gunning — the act of using a machine gun
- 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-sociology — the sociological study of large-scale social systems and long-term patterns and processes.
- 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
- macrophotograph — a photograph taken at very close range
- macroprudential — Of or pertaining to systemic prudence, especially to the strengths and vulnerabilities of financial systems.
- macroscopically — visible to the naked eye. Compare microscopic (def 1).
- macrosporangium — megasporangium.
- macrostructural — relating to or resembling a macrostructure
- macrostructures — Plural form of macrostructure.
- mailing machine — a machine that prepares mail for sending, as by addressing, stamping, weighing, etc.
- make a comeback — popular again
- make tracks for — to go or head towards
- malacopterygian — belonging or pertaining to the Malacopterygii (Malacopteri), a group of soft-finned, teleost fishes.
- manhattan beach — a city in SW California, SW of Los Angeles.
- massed practice — learning with no intervals or short intervals between successive bouts of learning
- megacorporation — a giant company formed from two or more large companies or a number of companies of various sizes.
- membership pack — a collection of documents, information leaflets, cards, etc, that is given to members, especially new ones