17-letter words containing w, d, o, a

go down the drain — to withdraw or draw off (a liquid) gradually; remove slowly or by degrees, as by filtration: to drain oil from a crankcase.
guardhouse lawyer — a person in military service, especially an inmate of a guardhouse or brig, who is or claims to be an authority on military law, regulations, and soldiers' rights.
gulf war syndrome — a group of symptoms occurring in some Gulf War veterans, most commonly including headache and memory loss, muscle pain, skin disorders, fatigue, sleep disturbances, and gastrointestinal and respiratory ailments, possibly caused by exposure to chemical weapons, vaccines, infectious diseases, or other factors.
hardware platform — a group of compatible computers that can run the same software.
have no words for — to be incapable of describing
hawking radiation — the emission of particles by a black hole. Pairs of virtual particles in the intense gravitational field around a black hole may live long enough for one to move outward when the other is pulled into the black hole, making it appear that the black hole is emitting radiation
hoare powerdomain — powerdomain
how the land lies — the prevailing conditions or state of affairs
i wouldn't say no — You use 'I wouldn't say no' to indicate that you would like something, especially something that has just been offered to you.
in/with regard to — You can use with regard to or in regard to to indicate the subject that is being talked or written about.
isherwood framing — a system for framing steel vessels in which light, closely spaced, longitudinal frames are connected by heavy, widely spaced transverse frames with deep webs.
japanese knotweed — Mexican bamboo.
kawasaki syndrome — a syndrome, usually afflicting children, characterized by high fever, swollen lymph nodes in the neck, rashes, irritated eyes and mucous membranes, etc. with possible damage to the cardiovascular system
knowledgeableness — The state, quality, or measure of being knowledgeable; wisdom.
lake of the woods — Eldrick [el-drik] /ˈɛl drɪk/ (Show IPA), ("Tiger") born 1975, U.S. professional golfer.
learned borrowing — a word or other linguistic form borrowed from a classical language into a modern language.
lee harvey oswald — Lee Harvey, 1939–63, designated by a presidential commission to be the lone assassin of John F. Kennedy.
light dawns on sb — If light dawns on you, you begin to understand something after a period of not being able to understand it.
longitudinal wave — a wave in which the direction of displacement is the same as the direction of propagation, as a sound wave.
middle low german — Low German of the period c1100–c1500.
narrow-shouldered — having shoulders which do not extend very far from the neck; not broad-shouldered
nervous breakdown — (not in technical use) any disabling mental disorder requiring treatment.
new scotland yard — See under Scotland Yard (def 1).
newfoundland time — a form of civil time observed on the island of Newfoundland, one and one-half hours later than Eastern time and a half hour later than Atlantic time.
nine days' wonder — an event or thing that arouses considerable but short-lived interest or excitement.
ninety-day wonder — an officer commissioned in a branch of the armed forces after an unusually short training period, especially after a three-months officers' training course during World War II.
of its own accord — If something happens of its own accord, it seems to happen by itself, without anyone making it happen.
old-man-and-woman — houseleek (def 1).
one-time password — (security) (OTP) A security system that requires a new password every time a user authenticates themselves, thus protecting against an intruder replaying an intercepted password. OTP generates passwords using either the MD4 or MD5 hashing algorithms. The equivalent term "S/Key", developed by Bellcore, is a trademark of Telcordia Technologies, so the name OTP is used increasingly. See RFC 1760 - "The S/KEY One-Time Password System" and RFC 1938 - "A One-Time Password System".
powder metallurgy — the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.
pressure drawdown — Pressure drawdown is the difference between the reservoir pressure and the flowing wellbore pressure, which drives fluids from the reservoir into the wellbore.
prusso-danish war — a war of 1864 between Prussia and Denmark by which Denmark lost Schleswig-Holstein.
put in a word for — to make favourable mention of (someone); recommend
quick on the draw — having fast reflexes
radioactive waste — the radioactive by-products from the operation of a nuclear reactor or from the reprocessing of depleted nuclear fuel.
read-write memory — a type of computer memory that you can write to as well as read from
reading knowledge — the ability to read a language, but not speak it
rough-legged hawk — a large hawk, Buteo lagopus, of the Northern Hemisphere, that feeds chiefly on small rodents.
russian wolfhound — borzoi.
sandwich compound — any of a class of organometallic compounds whose molecules have a metal atom or ion bound between two plane parallel organic rings
sawed-off shotgun — rifle with a short barrel
scattered showers — showers that are scattered across an area, or that occur at intervals throughout the day
second balkan war — Balkan War (def 2).
secondary rainbow — a faint rainbow formed by light rays that undergo two internal reflections in drops of rain, appearing above the primary rainbow and having its colors in the opposite order.
secondary winding — A secondary winding is the winding of a transformer that receives its energy by electromagnetic induction from the primary winding.
self-acknowledged — widely recognized; generally accepted: an acknowledged authority on Chinese art.
sidesaddle flower — a pitcher plant, Sarracenia purpurea.
slings and arrows — Slings and arrows are unpleasant things that happen to you and that are not your fault.
spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
spread your wings — if you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience

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