16-letter words containing p, i, c, k, a
- acidophilus milk — milk fermented by bacteria of the species Lactobacillus acidophilus, used in treating disorders of the gastrointestinal tract
- 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.
- bacterioplankton — (biology) The bacterial component of marine plankton.
- bashkir republic — a constituent republic of E central Russia, in the S Urals: established as the first Soviet autonomous republic in 1919; rich mineral resources. Capital: Ufa. Pop: 4 012 900 (2002). Area: 143 600 sq km (55 430 sq miles)
- black bottom pie — a rich pie with a rum- or whiskey-flavored chocolate filling, often with a crust of crushed gingersnaps, and topped with whipped cream.
- black-light trap — a trap for insects that uses ultraviolet light as an attractant.
- 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.
- capacity booking — a time when someone has booked the whole of a venue or the maximum amount of something available
- carpatho-ukraine — a region in W Ukraine: ceded by Czechoslovakia in 1945.
- 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.
- cracker capacity — The cracker capacity is the amount of a particular product which a refinery can produce.
- 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.
- 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.
- hairy woodpecker — a North American woodpecker, Picoides villosus, resembling but larger than the downy woodpecker.
- imperfect market — a market where buyers or sellers can influence the market, and there is a lack of product information
- information pack — a set of leaflets giving information about something
- 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.
- kaposi's sarcoma — a form of skin cancer found in Africans and more recently in victims of AIDS
- keep pace (with) — to go at the same speed (as)
- khakass republic — a constituent republic of S central Russia, formerly in Krasnoyarsk Territory: formed in 1930. Capital: Abakan. Pop: 546 100 (2002). Area: 61 900 sq km (23 855 sq miles)
- lipstick lesbian — a lesbian who is feminine in manner or appearance; a femme.
- magnetic pick-up — a type of record player pick-up in which the stylus moves an iron core in a coil, causing a changing magnetic field that produces the current
- make a complaint — If a guest makes a complaint, they express their dissatisfaction with something.
- make a pitch for — to give verbal support to
- packet switching — a method of efficient data transmission whereby the initial message is broken into relatively small units, or packets, that are routed independently and subsequently reassembled.
- packet-switching — a method of efficient data transmission whereby the initial message is broken into relatively small units, or packets, that are routed independently and subsequently reassembled.
- packing fraction — Physics. a measure of the stability of an atomic nucleus, equal to 10 4 multiplied by the mass defect and divided by the mass number.
- pain in the neck — source of annoyance
- pharmacokinetics — the branch of pharmacology that studies the fate of pharmacological substances in the body, as their absorption, distribution, metabolism, and elimination.
- pocket billiards — pool2 (def 1).
- pork scratchings — small pieces of crisply cooked pork crackling, eaten cold as an appetizer with drinks
- posigrade rocket — an auxiliary rocket used to separate the sections of a multistage rocket, fired in the direction of flight.
- punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
- put a sock in it — be quiet!
- river carpsucker — a carpsucker, Carpiodes carpio, found in silty rivers of the central U.S. south to Mexico.
- sheepskin jacket — a short jacket made of the skin of a sheep with the wool still attached to it
- sick as a parrot — very disappointed
- smack one's lips — If you smack your lips, you open and close your mouth noisily, especially before or after eating, to show that you are eager to eat or enjoyed eating.
- spanish mackerel — an American game fish, Scomberomorus maculatus, inhabiting the Atlantic Ocean.
- sticking plaster — an adhesive cloth or other material for covering and closing superficial wounds, holding bandages in place, etc.
- trick photograph — a photograph that creates an illusion
- trucking company — a company that transports goods by lorry
- upside-down cake — a cake that is baked on a layer of fruit, then turned before serving so that the fruit is on top.
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