16-letter words containing w, e, r, n
- darwinian theory — Darwin's theory of evolution, which holds that all species of plants and animals developed from earlier forms by hereditary transmission of slight variations in successive generations, and that natural selection determines which forms will survive
- data warehousing — the use of large amounts of data taken from multiple sources to create reports and for data analysis
- de morgan's laws — (in formal logic and set theory) the principles that conjunction and disjunction, or union and intersection, are dual. Thus the negation of P & Q is equivalent to not-P or not-Q
- declare war (on) — to make a formal declaration of being at war (with)
- developing world — Third World: poor countries
- dew-point spread — the degrees of difference between the air temperature and the dew point
- down memory lane — If you say that someone is taking a walk or trip down memory lane, you mean that they are talking, writing, or thinking about something that happened to them a long time ago.
- down to the wire — a slender, stringlike piece or filament of relatively rigid or flexible metal, usually circular in section, manufactured in a great variety of diameters and metals depending on its application.
- downy woodpecker — a small, North American woodpecker, Picoides pubescens, having black and white plumage.
- draw and quarter — to disembowel and dismember (a person) after hanging
- draw the longbow — to exaggerate in telling something
- dree one's weird — to endure one's fate
- drop (down) dead — If you say that a person or animal dropped dead or dropped down dead, you mean that they died very suddenly and unexpectedly.
- dyer's greenweed — woadwaxen.
- dyer's-greenweed — woadwaxen.
- eastern whipbird — an Australian whipbird, Psophodes olivaceus
- ebony spleenwort — a fern, Asplenium platyneuron, of woody areas of North America, having ladderlike leaves and shiny, dark brown stems.
- eighteen-wheeler — a tractor-trailer having eighteen wheels
- electric welding — the process of welding together, through the use of the heat that is produced by an electric current, pieces of metal
- emergency powers — special permission allowing a minister, government, etc to take action in an emergency without having to have their actions approved by parliament
- emergency worker — a person whose job is to help people in emergencies
- exploration well — An exploration well is a borehole which is drilled to find out if there is any oil or gas in a place.
- federation wheat — an early-maturing drought-resistant variety of wheat developed by William Farrar in 1902
- fellow passenger — a person travelling on the same vehicle, plane, ship etc as you
- firewall machine — (networking, security) A dedicated gateway server with special security precautions on it, used to service external connections (typically from the public Internet). The firewall machine protects servers and networks hidden behind it from crackers. The typical firewall is an inexpensive microprocessor-based Unix machine with no critical data, with public network ports on it, but just one carefully watched connection back to the rest of the cluster. The special precautions may include threat monitoring, call-back, and even a complete iron box keyable to particular incoming IDs or activity patterns. The type of network and security environment of a firewall machine is often called a De-Militarised Zone (DMZ). It may contain other servers such as e-mail servers or proxy gateways - machines that need to be publicly accessible but also need some access to internal systems. Also known as a (Venus) flytrap after the insect-eating plant.
- flower arranging — Flower arranging is the art or hobby of arranging cut flowers in a way which makes them look attractive.
- flowering quince — any shrub belonging to the genus Chaenomeles, of the rose family, native to eastern Asia, having showy, waxy flowers and a quincelike fruit, grown widely as an ornamental.
- forswear oneself — to swear falsely; perjure oneself
- fort leavenworth — a military reservation and U.S. Army training center in E Kansas adjoining Leavenworth, one of the oldest (1827) military posts W of the Mississippi and site of federal penitentiary.
- forward exchange — a foreign bill purchased at a stipulated price and payable at a future date.
- forwarding agent — freight forwarder.
- francis townsend — Francis Everett, 1867–1960, U.S. physician and proposer of the Townsend plan.
- friction welding — a method of welding thermoplastics or metals by the heat generated by rubbing the members to be joined against each other under pressure.
- functional water — water containing additives that provide extra nutritional value
- gasoline-powered — using gasoline as fuel
- geostrophic wind — a wind whose velocity and direction are mathematically defined by the balanced relationship of the pressure gradient force and the Coriolis force: conceived as blowing parallel to isobars.
- get on your wick — If you say that someone or something gets on your wick, you mean that they annoy and irritate you.
- great horned owl — a large, brown-speckled owl, Bubo virginianus, common in the Western Hemisphere, having prominent ear tufts.
- green woodpecker — a woodpecker, Picus viridis, of Eurasia and northern Africa, having green plumage with a yellow rump and red on the top of the head.
- growth potential — capability of expanding
- growth substance — any substance, produced naturally by a plant or manufactured commercially, that, in very low concentrations, affects plant growth; a plant hormone
- hand screw clamp — a screw that can be tightened by the fingers, without the aid of a tool.
- hanging wardrobe — a wardrobe containing a rail with a large amount of space underneath, so that clothes can be hung on hangers placed onto the rail
- hard-packed snow — snow which becomes very firmly packed as it becomes refrozen due to cold weather conditions rather than melting
- hawaiian gardens — a town in SW California.
- hawthorne effect — a positive change in the performance of a group of persons taking part in an experiment or study due to their perception of being singled out for special consideration.
- here we go again — You use expressions such as 'here we go' and 'here we go again' in order to indicate that something is happening again in the way that you expected, especially something unpleasant.
- 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.
- icterine warbler — a European variety of tree warbler (Hippolais icterina )
- implied warranty — a warranty not stated explicitly by the seller of merchandise or real property but presumed for reasons of commercial or legal custom (distinguished from express warranty).