18-letter words containing n, o, g, r

nitrogen tetroxide — a poisonous compound, N 2 O 4 , occurring as a colorless, water-soluble solid or liquid, dissociating into NO 2 : used chiefly as an oxidizer, especially in rocket fuels, as a nitrating agent, and as an intermediate in the manufacture of nitric acid.
no laughing matter — sth serious
non-self-governing — governed by itself or having self-government, as a state or community; independent.
nonaggression pact — an agreement between two nations not to attack each other, usually for a specified period of years
noninterchangeable — That cannot be interchanged with another.
nonionic detergent — a detergent that is polar but does not ionize in aqueous solution.
nonpartisan league — a political organization of farmers, founded in North Dakota in 1915, and extending to many states west of the Mississippi, with the aim of influencing agricultural legislation in state legislatures.
nonpharmacological — Not pharmacological.
north attleborough — a city in SE Massachusetts.
north college hill — a city in SW Ohio.
north polar region — the region of land and water surrounding the North Pole.
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 a pretty sight — If you say that someone or something is not a pretty sight, you mean that it is not pleasant to look at.
now you're talking — at last you're saying something agreeable
oak-leaf hydrangea — a shrub, Hydrangea quercifolia, of the southeastern U.S., having lobed leaves and pyramidal clusters of white flowers.
obedience training — the training of an animal, especially a dog, to obey certain commands.
occupational group — An occupational group is a category used by insurance companies to classify jobs according to how hazardous they are.
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.
off-street parking — spaces for cars located on private property rather than on a public street
office of readings — the first of the canonical hours; matins
oil of wintergreen — methyl salicylate.
on delicate ground — in a situation requiring tact
on the danger list — critically ill in hospital
on the ragged edge — precariously close to loss of self-control, mental stability, etc.
on the strength of — the quality or state of being strong; bodily or muscular power; vigor.
open heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
open-heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
operating expenses — Operating expenses are expenses related to carrying out normal business activities.
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
operations manager — business director
optical brightener — an additive that dyes and brightens fabric or paper
order of magnitude — You can use order of magnitude when you are giving an approximate idea of the amount or importance of something.
organic solidarity — social cohesiveness that is based on division of labor and interdependence and is characteristic of complex, industrial societies.
organization chart — a diagrammatic representation showing how departments or divisions in an organization, as a large corporation, are related to one another along lines of authority.
organized religion — institutionalized religion, usually with a hierarchical clergy and rules to govern the means by which adherents participate
orthotungstic acid — an oxyacid acid of tungsten. Formula: H2WO4
osteogenic sarcoma — osteosarcoma
out of the running — the act of a person, animal, or thing that runs.
over the long term — in the future
overgeneralization — the act or process of overgeneralizing.
overnight telegram — a type of domestic telegram sent at a reduced rate with a minimum charge for 10 words or less and accepted until midnight for delivery the following day.
overtime work(ing) — work at a regular job done in addition to regular working hours
owen stanley range — a mountain range in SE New Guinea. Highest peak: Mount Victoria, 4073 m (13 363 ft)
ox-tongue partisan — a shafted weapon having a long, wide, tapering blade.
palaeoanthropology — the branch of anthropology concerned with primitive man
parallel computing — parallel processing
parallel importing — the importing of certain goods, esp pharmaceutical drugs, by dealers who undersell local manufacturers
parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
passing-out parade — a ceremonial parade of cadets who have completed their training
peacekeeping force — a force designated to the maintenance of peace, esp the prevention of further fighting between hostile forces in an area

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