16-letter words containing p, o, r, k, i
- antiparkinsonian — An antiparkinsonian is an agent used in the treatment of Parkinson's disease.
- 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.
- 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.
- break-even point — When a company reaches break-even point, the money it makes from the sale of goods or services is just enough to cover the cost of supplying those goods or services, but not enough to make a profit.
- burkitt lymphoma — a rare type of tumour of the white blood cells, occurring mainly in Africa and associated with infection by Epstein-Barr virus
- 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.
- dneprodzerzhinsk — a city in the E central Ukraine, in the SW Russian Federation in Europe, on the Dnieper River.
- drinking problem — If someone is said to have a drink problem, they are thought to drink too much alcohol
- 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.
- firework display — a public event at which fireworks are set alight
- 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.
- hopfield network — (artificial intelligence) (Or "Hopfield model") A kind of neural network investigated by John Hopfield in the early 1980s. The Hopfield network has no special input or output neurons (see McCulloch-Pitts), but all are both input and output, and all are connected to all others in both directions (with equal weights in the two directions). Input is applied simultaneously to all neurons which then output to each other and the process continues until a stable state is reached, which represents the network output.
- information pack — a set of leaflets giving information about something
- kaposi's sarcoma — a form of skin cancer found in Africans and more recently in victims of AIDS
- keep on a string — to have control or a hold over (someone), esp emotionally
- kidney corpuscle — Malpighian corpuscle.
- kleptoparasitism — The parasitic theft of captured prey, nest material, etc. from animals of the same or another species.
- large-print book — a book where the text is printed in larger text than normal, so as to make it easier to read, esp for the visually impaired
- make a pitch for — to give verbal support to
- man booker prize — an annual prize for a work of Commonwealth or Irish fiction of £50,000, awarded as the Booker Prize from 1969–2002
- morris plan bank — a private banking organization, formerly common in the U.S., designed primarily to grant small loans to industrial workers.
- network provider — a business or organization that provides customers with access to a telecommunications network (esp mobile phone networks) or to the internet
- 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.
- pharmacokinetics — the branch of pharmacology that studies the fate of pharmacological substances in the body, as their absorption, distribution, metabolism, and elimination.
- philosopher king — the Platonic ideal of a ruler, philosophically trained and enlightened.
- philosopher-king — the Platonic ideal of a ruler, philosophically trained and enlightened.
- pocket billiards — pool2 (def 1).
- pork scratchings — small pieces of crisply cooked pork crackling, eaten cold as an appetizer with drinks
- portfolio worker — a person in portfolio employment
- posigrade rocket — an auxiliary rocket used to separate the sections of a multistage rocket, fired in the direction of flight.
- poverty-stricken — suffering from poverty; extremely poor: poverty-stricken refugees.
- proboscis monkey — a reddish, arboreal monkey, Nasalis larvatus, of Borneo, the male of which has a long, flexible nose: an endangered species.
- punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
- sick as a parrot — very disappointed
- sparking voltage — the minimum voltage required to produce a spark across a given spark gap.
- speak for itself — be self-evident
- speed networking — the practice of trying to form business connections and contacts through meetings at which individuals are given the opportunity to have several conversations of limited duration with strangers
- spring snowflake — a European amaryllidaceous plant, Leucojum vernum, with white nodding bell-shaped flowers
- tightrope walker — performer who walks on high wire
- trick photograph — a photograph that creates an illusion
- trucking company — a company that transports goods by lorry
- two-percent milk — Two-percent milk is milk from which some of the cream has been removed.
- unpublished work — a literary work that has not been reproduced for sale or publicly distributed.
- walk a tightrope — be in a precarious position
- work-in-progress — In book-keeping, work-in-progress refers to the monetary value of work that has not yet been paid for because it has not yet been completed.
- yellow pikeperch — the walleye, Stizostedion vitreum.
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