15-letter words containing o, a, k, r
- hyperweak force — a hypothetical force that transforms quarks into leptons and vice versa at high energies.
- in one's tracks — a structure consisting of a pair of parallel lines of rails with their crossties, on which a railroad train, trolley, or the like runs.
- ivano-frankovsk — a city in W Ukraine, S of Lvov.
- 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.
- kailyard school — a school of writers describing homely life in Scotland, with much use of Scottish dialect: in vogue toward the close of the 19th century.
- kaleyard school — a group of writers who depicted the sentimental and homely aspects of life in the Scottish Lowlands from about 1880 to 1914. The best known contributor to the school was J. M. Barrie
- kangaroo island — an island in the Indian Ocean, off South Australia. Area: 4350 sq km (1680 sq miles)
- karaoke machine — a device that plays a prerecorded backing tape, to which people take it in turns to sing
- katathermometer — a thermometer used to measure the cooling power of ambient air
- 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.
- kernmantel rope — a rope made of many straight nylon fibres within a plaited sheath; used for its tensile strength, freedom from twisting, and elasticity
- keyboard plaque — (jargon) The disgusting buildup of dirt and crud found on computer keyboards. "Are there any other terminals I can use? This one has a bad case of keyboard plaque."
- keyboard skills — ability to input information using a keyboard
- keynote address — a speech, as at a political convention, that presents important issues, principles, policies, etc.
- keynote speaker — sb: gives opening speech
- kidasa software — (company) A company which develops project management software for Microsoft Windows.
- kilovolt-ampere — an electrical unit, equal to 1000 volt-amperes. Abbreviation: kVA, kva.
- kirchhoff's law — the law that the algebraic sum of the currents flowing toward any point in an electric network is zero.
- kissing gourami — a whitish labyrinth fish, Helostoma temmincki, found in southeastern Asia, noted for the habit of pressing its fleshy, protrusible lips against those of another: often kept in aquariums.
- kleptoparasites — Plural form of kleptoparasite.
- kleptoparasitic — Pertaining to kleptoparasitism.
- knight bachelor — bachelor (def 3).
- kreutzer sonata — a sonata for violin and piano (1803, Op. 47) by Ludwig van Beethoven.
- kronecker delta — a function of two variables, i and j, which equals 1 when the variables have the same value, i = j, and equals 0 when the variables have different values, i ≠ j.
- lake miraflores — an artificial lake in Panama, in the S Canal Zone of the Panama Canal
- lake-of-lucerne — a canton in central Switzerland. 576 sq. mi. (1490 sq. km).
- 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).
- liskov, barbara — Barbara Liskov
- local is lekker — popular slogan promoting South African culture, produce, etc
- look daggers at — to look at with anger or hatred
- look forward to — to turn one's eyes toward something or in some direction in order to see: He looked toward the western horizon and saw the returning planes.
- loudspeaker van — a motor vehicle carrying a public address system
- make a horlicks — to make a mistake or a mess
- make a long arm — to reach out for something, as from a sitting position
- make a play for — to act the part of (a person or character) in a dramatic performance; portray: to play Lady Macbeth.
- make certain of — to ensure (that one will get something); confirm
- make it hot for — having or giving off heat; having a high temperature: a hot fire; hot coffee.
- make one's mark — a visible impression or trace on something, as a line, cut, dent, stain, or bruise: a small mark on his arm.
- make the effort — try
- make the rounds — having a flat, circular surface, as a disk.
- make tracks for — to go or head towards
- make-up remover — a substance that you use to remove make-up from your face
- manukau harbour — an inlet of the Tasman Sea near Auckland in New Zealand on NW North Island
- marriage broker — a person who arranges marriages, usually between strangers, for a fee.
- megalokaryocyte — Megakaryocyte.
- microearthquake — an earthquake of very low intensity (magnitude of 2 or less on the Richter scale).
- mineral kingdom — minerals collectively.
- mock pennyroyal — pennyroyal (def 2).
- mohawk hair cut — a member of a tribe of the most easterly of the Iroquois Five Nations, formerly resident along the Mohawk River, New York.