18-letter words containing w, a, n, i

gravitational wave — (in general relativity) a propagating wave of gravitational energy produced by accelerating masses, especially during catastrophic events, as the gravitational collapse of massive stars.
greater periwinkle — a Eurasian apocynaceous evergreen plant of the genus Vinca, V. major, having trailing stems and blue flowers
greenhouse warming — the increase in the mean temperature of the earth attributed to the greenhouse effect
growing degree-day — a degree-day above 41°F (5°C), used in relation to plant growth.
hardy-weinberg law — a principle stating that in an infinitely large, randomly mating population in which selection, migration, and mutation do not occur, the frequencies of alleles and genotypes do not change from generation to generation.
herring bone weave — a pattern consisting of adjoining vertical rows of slanting lines, any two contiguous lines forming either a V or an inverted V , used in masonry, textiles, embroidery, etc.
hot-water cylinder — a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system
in accordance with — conforming to
in black and white — without colour
in company with sb — If you feel, believe, or know something in company with someone else, you both feel, believe, or know it.
in comparison with — when compared to
in compliance with — in accordance with
in that/which case — You say in that case or in which case to indicate that what you are going to say is true if the possible situation that has just been mentioned actually exists.
in with a shout of — If you say that someone is in with a shout of achieving or winning something, you mean that they have a chance of achieving or winning it.
interest rate swap — An interest rate swap is a contract where two parties exchange the cash flow from interest rates.
intimate borrowing — the borrowing of linguistic forms by one language or dialect from another when both occupy a single geographical or cultural community.
inverse square law — one of several laws relating two quantities such that one quantity varies inversely as the square of the other, as the law that the illumination produced on a screen by a point source varies inversely as the square of the distance of the screen from the source.
iridescent seaweed — a red alga, Irideae cordata, found on the Pacific coast of North America, having broad, leathery, iridescent blades.
junior heavyweight — a boxer weighing up to 190 pounds (85.5 kg), between light heavyweight and heavyweight.
king william's war — the war (1689–97) in which England and its American colonies and Indian allies opposed France and its Indian allies and which constituted the American phase of the War of the Grand Alliance.
kirtland's warbler — a wood warbler, Dendroica kirtlandii, breeding only in north-central Michigan and wintering in the Bahamas, bluish gray above, striped with black and pale yellow below: an endangered species.
law of gravitation — a law stating that any two masses attract each other with a force equal to a constant (constant of gravitation) multiplied by the product of the two masses and divided by the square of the distance between them.
law of mass action — the statement that the rate of a chemical reaction is proportional to the concentrations of the reacting substances.
law of segregation — the principle, originated by Gregor Mendel, stating that during the production of gametes the two copies of each hereditary factor segregate so that offspring acquire one factor from each parent.
lawrence of arabia — D(avid) H(erbert) 1885–1930, English novelist.
malicious wounding — the intentional violent wounding or injuring of someone
marine underwriter — an underwriter who specializes in marine insurance
mechanical drawing — drawing, as of machinery, done with the aid of rulers, scales, compasses, etc.
medicine bow range — a range of the Rocky Mountains, in Wyoming and Colorado. Highest peak, Medicine Bow Peak, 12,014 feet (3662 meters).
mendel's first law — the principle, originated by Gregor Mendel, stating that during the production of gametes the two copies of each hereditary factor segregate so that offspring acquire one factor from each parent.
mobility allowance — an allowance paid by the government to help people who have limited mobility
nailed to the wall — [like a trophy] Said of a bug finally eliminated after protracted, and even heroic, effort.
negative cash flow — the situation when income is less than payments
neighborhood watch — a neighborhood surveillance program or group in which residents keep watch over one another's houses, patrol the streets, etc., in an attempt to prevent crime.
new american bible — an English translation of the Bible based on the original languages, prepared by Catholic Biblical scholars, and first published in 1970.
new forest disease — an infectious eye disease causing acute eye pain in cattle
new zealand on air — the operational name for the New Zealand Broadcasting Commission
new zealand pigeon — a large fruit-eating native pigeon, Hemiphagia novaeseelandiae, of forest areas
norwegian elkhound — one of a breed of dogs having a short, compact body, short, pointed ears, and a thick, gray coat, raised originally in Norway for hunting elk and other game.
not that i know of — You say 'Not that I know of' when someone has asked you whether or not something is true and you think the answer is 'no' but you cannot be sure because you do not know all the facts.
now you're talking — at last you're saying something agreeable
of your own making — If you say that something such as a problem you have is of your own making, you mean you have caused or created it yourself.
old low franconian — a Low German dialect of the Franks of the lower Rhine valley before c1100.
on a sticky wicket — in an awkward situation
operating software — software used in the operation of a computer system, typically by performing such tasks as memory allocation, job scheduling, and input/output control
oriental scops owl — any of a group of small owls having ear tufts and a whistling call, especially Otus scops (Old World scops owl) and O. sunia (Oriental scops owl)
over and done with — If you say that something is over and done with, you mean that it is completely finished and you do not have to think about it any more.
packet switch node — (PSN) A dedicated computer whose purpose is to accept, route and forward packets in a packet-switched network.
paint the town red — a substance composed of solid coloring matter suspended in a liquid medium and applied as a protective or decorative coating to various surfaces, or to canvas or other materials in producing a work of art.
phantom withdrawal — the unauthorized removal of funds from a bank account using an automated teller machine

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