16-letter words containing r, a, c, k, i, n
- adirondack chair — a sturdy armchair for outdoor use, made of wide wooden slats, with a sloping back and a seat often slanting down toward it.
- alternative rock — a broad category of popular rock music typically regarded as somewhat out of the mainstream and variously including elements of punk rock, heavy metal, folk music, etc.
- american kestrel — a small American falcon (Falco sparverius) with a reddish-brown back and tail; sparrow hawk
- aniakchak crater — an active volcanic crater on the Alaskan Peninsula, with a diameter of 6 miles (10 km).
- armchair banking — the management of one's bank account or accounts using a computer, telephone, or television in the home or via the postal system
- atlantic croaker — a person or thing that croaks.
- back-propagation — (Or "backpropagation") A learning algorithm for modifying a feed-forward neural network which minimises a continuous "error function" or "objective function." Back-propagation is a "gradient descent" method of training in that it uses gradient information to modify the network weights to decrease the value of the error function on subsequent tests of the inputs. Other gradient-based methods from numerical analysis can be used to train networks more efficiently. Back-propagation makes use of a mathematical trick when the network is simulated on a digital computer, yielding in just two traversals of the network (once forward, and once back) both the difference between the desired and actual output, and the derivatives of this difference with respect to the connection weights.
- background music — music of any kind that is played while some other activity is going on, so that people do not actively attend to it
- background noise — any type of noise that is not the sound that you are specifically listening to or monitoring
- backward-looking — If you describe someone or something as backward-looking, you disapprove of their attitudes, ideas, or actions because they are based on old-fashioned opinions or methods.
- bacterial canker — a disease of plants, characterized by cankers and usually by exudation of gum, caused by bacteria, as of the genera Pseudomonas and Corynebacterium.
- bacterioplankton — (biology) The bacterial component of marine plankton.
- badminton racket — the type of racket used in games of badminton
- birchbark biting — a Native Canadian craft in which designs are bitten onto bark from birch trees
- bismarck herring — marinaded herring, served cold
- blink comparator — an optical instrument used to detect small differences in two photographs of the same field or object by viewing them alternately, switching rapidly from one to the other.
- braking distance — the distance a vehicle travels from the point at which its brakes are applied to the point at which it comes to a stop
- brick-and-mortar — pertaining to conventional stores, businesses, etc., having physical buildings and facilities, as opposed to Internet or remote services.
- buckthorn family — the plant family Rhamnaceae, characterized by shrubs and trees having alternate, simple leaves, clusters of small flowers, and fruit in the form of a drupe or capsule, and including the buckthorn, cascara, and New Jersey tea.
- carpatho-ukraine — a region in W Ukraine: ceded by Czechoslovakia in 1945.
- carrot and stick — If an organization has a carrot and stick approach or policy, they offer people things in order to persuade them to do something and punish them if they refuse to do it.
- clackmannanshire — a council area and historical county of central Scotland; became part of the Central region in 1975 but reinstated as an independent unitary authority in 1996; mainly agricultural. Administrative centre: Alloa. Pop: 47 680 (2003 est). Area: 142 sq km (55 sq miles)
- cloak-and-suiter — a manufacturer or seller of clothing.
- contract killing — a murder carried out in fulfilment of a contract
- cooperative bank — a cooperative savings institution, chartered and regulated by a state or the federal government, that receives deposits in exchange for shares of ownership and invests its funds chiefly in loans secured by first mortgages on homes.
- counterattacking — Present participle of counterattack.
- cracked fraction — A cracked fraction is a petroleum fraction (= a portion separated according to a physical property) that has been broken down from a fraction with larger molecules.
- day of reckoning — If someone talks about the day of reckoning, they mean a day or time in the future when people will be forced to deal with an unpleasant situation which they have avoided until now.
- dictionary-maker — a person who compiles a dictionary
- direct marketing — marketing direct to the consumer, as by direct mail or coupon advertising.
- drug trafficking — smuggling illegal drugs
- drunkard's chair — a low, deep armchair of the 18th century.
- dynamic markings — directions and symbols used to indicate degrees of loudness
- educational park — a group of elementary and high schools, usually clustered in a parklike setting and having certain facilities shared by all grades, that often accommodates students from a large area.
- electric blanket — electrically-heated bedcover
- embarkation card — an official document that allows travellers to leave a country by boarding a ship or plane
- exclamation mark — (character) The character "!" with ASCII code 33. Common names: bang; pling; excl (/eks'kl/); shriek; ITU-T: exclamation mark, exclamation point (US). Rare: factorial; exclam; smash; cuss; boing; yell; wow; hey; wham; eureka; soldier; INTERCAL: spark-spot. The Commonwealth Hackish, "pling", is common among Acorn Archimedes owners. Bang is more common in the USA. The occasional CMU usage, "shriek", is also used by APL fans and mathematicians, especially category theorists. Exclamation mark is used in C and elsewhere as the logical negation operation (NOT).
- formation packer — A formation packer is a substance that is used as a seal between the casing and the borehole so that part of the hole can be tested.
- franking machine — a machine that franks letters
- hard rock mining — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- horseback riding — activity: riding a horse
- information pack — a set of leaflets giving information about something
- insurance broker — person who sells insurance policies
- inter-packet gap — (networking) A time delay between successive data packets mandated by the network standard for protocol reasons. In Ethernet, the medium has to be "silent" (i.e., no data transfer) for a few microseconds before a node can consider the network idle and start to transmit. This is necessary for fairness reasons. The delay time, which approximately equals the signal propagation time on the cable, allows the "silence" to reach the far end so that all nodes consider the net idle.
- karyokinetically — In a karyokinetic manner; by means of karyokinesis.
- keyman insurance — life insurance taken out by a business firm on an essential or very important employee, with the firm as beneficiary.
- lake saint clair — a lake between SE Michigan and Ontario: linked with Lake Huron by the St Clair River and with Lake Erie by the Detroit River. Area: 1191 sq km (460 sq miles)
- narcotraffickers — Plural form of narcotrafficker.
- narcotrafficking — the buying and selling of illegal drugs.
- not miss a trick — to be very alert
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