18-letter words containing r, a, k
- cerenkov radiation — radiation emitted when a charged particle travels through a medium at a speed greater than the speed of light through that medium
- certification mark — a mark that certifies the origin, material, quality, mode of manufacture, accuracy, or other characteristic of a product or service: “UL” is a certification mark for appliances meeting the safety standards of Underwriters Laboratories, Inc.
- check verification — Check verification is a system that checks national databases of information about individuals to make sure that checks will be honored and fraud is not being committed.
- checkpoint charlie — a crossing between East and West Berlin during the Cold War
- chicken tetrazzini — diced chicken in a cream sauce, baked in a casserole with noodles and cheese, usually flavored with sherry.
- chickenheartedness — Alternative form of chicken-heartedness.
- christmas stocking — A Christmas stocking is a long sock which children hang up on Christmas Eve. During the night, parents fill the stocking with small presents.
- clark's nutcracker — a nutcracker, Nucifraga columbiana, of western North America, having pale gray plumage and black and white wings and tail.
- classical sanskrit — Sanskrit of an ancient period earlier than that of the Prakrits and later than Vedic.
- come back to earth — to return to reality from a fantasy or daydream
- convenience market — the area of business which involves selling convenience foods
- coronation chicken — a dish of cold cooked chicken in a mild creamy curry sauce
- correspondent bank — A correspondent bank is a bank that provides services such as accepting deposits for another bank.
- cracked distillate — A cracked distillate is a clear yellow liquid, mostly containing hydrocarbons, which is produced by steam cracking without a catalyst.
- crookes dark space — the dark space between the cathode glow and the negative glow in a vacuum tube, occurring when the pressure is low.
- crookes radiometer — a type of radiometer consisting of an evacuated glass bulb containing a set of lightweight vanes, each blackened on one side. The vanes are mounted on a vertical axis and revolve when light, or other radiant energy, falls on them
- diamondback turtle — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
- dr. james h. clark — (person) The founder of Silicon Graphics, Inc. and co-founder of Netscape Communications Corporation.
- drinking chocolate — sweetened cocoa powder
- drug on the market — Pharmacology. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being.
- eastern meadowlark — any of several American songbirds of the genus Sturnella, of the family Icteridae, especially S. magna (eastern meadowlark) and S. neglecta (western meadowlark) having a brownish and black back and wings and a yellow breast, noted for their clear, tuneful song.
- electronic banking — the transfer of money between financial institutions through an exchange of electronic signals over a network
- faraday dark space — the dark region between the negative glow and the positive column in a vacuum tube occurring when the pressure is low.
- feldenkrais method — a system of gentle movements that promote flexibility, coordination, and self-awareness
- firecracker flower — a plant, Dichelostemma ida-maia, of the amaryllis family, native to California and Oregon, having clusters of tubular scarlet flowers.
- for heaven's sake! — a mild exclamation of surprise, annoyance, etc.
- frederick douglass — Frederick, 1817–95, U.S. ex-slave, abolitionist, and orator.
- free-range chicken — a chicken kept in natural nonintensive conditions
- gooseneck barnacle — goose barnacle
- great-circle track — the route of a ship following the arc of a great circle, appearing as a curved line on a Mercator chart and as a straight line on a gnomonic chart.
- greater periwinkle — a Eurasian apocynaceous evergreen plant of the genus Vinca, V. major, having trailing stems and blue flowers
- green-backed heron — a small, American heron, Butorides striatus, having glossy green wings.
- grosse pointe park — a city in SE Michigan, near Detroit.
- handkerchief table — corner table.
- hawksbill (turtle) — a medium-sized marine turtle (Eretmochelys imbricata, family Cheloniidae) having a hawklike beak and a horny shell from which tortoise shell is obtained
- health care worker — A health care worker is someone who works in a hospital or health centre.
- heteroskedasticity — Alternative spelling of heteroscedasticity.
- imamu amiri baraka — Imamu Amiri [ih-mah-moo uh-meer-ee] /ɪˈmɑ mu əˈmɪər i/ (Show IPA), (Everett LeRoi Jones) 1934–2014, U.S. dramatist, poet, and political activist.
- incremental backup — (operating system) A kind of backup that copies all files which have changed since the date of the previous backup. The first backup of a file system should include all files - a "full backup". Call this level 0. The next backup could also be a full level 0 backup but it is usually much quicker to do a level 1 backup which will include only those files which have changed since the level 0 backup. Together the level 0 and level 1 backups will include the latest version of every file. Level 1 backups can be made until, say, the backup tape is nearly full, after which we can switch to level 2. Each level includes those files which have changed since the last backup at a lower level. The more levels you use, the longer it will take to restore the latest version of a file (or all files) if you don't know when it was last modified. Compare differential backup.
- interbroker dealer — a specialist who matches the needs of different market makers and facilitates dealings between them
- interdealer broker — an agent who is paid a commission to bring buyers and sellers together
- interrogation mark — Also called interrogation point, interrogation mark. a mark indicating a question: usually, as in English, the mark (?) placed after a question.
- jack of all trades — a person who is adept at many different kinds of work.
- jack-of-all-trades — a person who is adept at many different kinds of work.
- japanese artichoke — Chinese artichoke.
- kakorrhaphiophobia — (rare) the fear of failure or defeat.
- kansas gay-feather — prairie button snakeroot.
- keep your hair on! — keep calm
- kentucky bluegrass — a grass, Poa pratensis, of the Mississippi valley, used for pasturage and lawns.
- killer application — a highly innovative, very powerful, or extremely useful computer application; esp one sufficiently important as to justify purchase of the equipment or software