15-letter words containing n, e, o, c, r

not necessarily — If you reply 'Not necessarily', you mean that what has just been said or suggested may not be true.
nuclear fission — fission (def 2).
nuclear reactor — reactor (def 4).
nuclear-powered — powered by nuclear energy
nuisance ground — a garbage dump.
obedience trial — a competitive event at which a dog can progress toward a degree in obedience by demonstrating its ability to follow a prescribed series of commands.
object-oriented — pertaining to or denoting a system, programming language, etc., that supports the use of objects, as an entire image, a routine, or a data structure.
observation car — a railroad passenger car having a lounge or platform from which the scenery can be viewed.
obstructiveness — The characteristic of being obstructive.
ocean greyhound — a fast ship, esp a liner
ocean of storms — the largest of the dark plains (maria) on the surface of the moon, situated in the second and third quadrant
octanitrocubane — (organic compound) A high explosive derived from cubane.
okhotsk current — a cold ocean current flowing SW from the Bering Sea, E of the Kurile Islands, along the E coast of Japan where it meets the Japan Current.
olfactory nerve — either one of the first pair of cranial nerves, consisting of sensory fibers that conduct to the brain the impulses from the mucous membranes of the nose.
oligodendrocyte — A glial cell similar to an astrocyte but with fewer protuberances, concerned with the production of myelin in the central nervous system.
omnidirectional — sending or receiving signals in all directions: an omnidirectional microphone.
on (the) record — recorded; publicly or officially declared or known
on prescription — If a medicine is available on prescription, you can only get it from a chemist or pharmacist if a doctor gives you a prescription for it.
on short notice — with little warning
on the contrary — opposite in nature or character; diametrically or mutually opposed: contrary to fact; contrary propositions.
on the decrease — decreasing
on the increase — growing, increasing
on the track of — If you are on the track of someone or something, you are trying to find them, or find information about them.
oneirocriticism — the art of interpreting dreams.
operating cycle — the period of time between starting a business and making a profit
optical printer — a film printer used in making optical effects, consisting basically of a camera that photographs the image with special lenses to enlarge, reduce, distort, etc., and a projector that transfers the image to the print stock, as distinguished from a contact printer.
optical scanner — the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.
optoelectronics — the branch of electronics dealing with devices that generate, transform, transmit, or sense optical, infrared, or ultraviolet radiation, as cathode-ray tubes, electroluminescent and liquid crystal displays, lasers, and solar cells.
orange chromide — an Asian cichlid fish, Etropus maculatus, with a brownish-orange spotted body
orchestrational — Of or pertaining to orchestration.
order of canada — an order awarded to Canadians for outstanding achievement; established in 1967
ordinary income — taxable income, as salary and wages, other than capital gains.
ordnance survey — mapmaking agency
organic disease — a disease in which there is a structural alteration (opposed to functional disease).
organized chaos — a complex situation or process that appears chaotic while having enough order to achieve progress or goals
organized crime — illegal activities co-ordinated by groups
organochlorines — Plural form of organochlorine.
organomercurial — an organic compound containing mercury
oriental carpet — Oriental rug.
oscars ceremony — a formal annual event in the United States in which small gold statuettes are awarded by the Academy of Motion Picture Arts and Sciences for outstanding achievements in films
osteochondritis — inflammation of bone and cartilage.
osteochondrosis — a disease of bone and cartilage growth centers in children that begins as a necrosis and is followed by regeneration or renewed calcification.
over-accentuate — to give emphasis or prominence to.
over-analytical — pertaining to or proceeding by analysis (opposed to synthetic).
over-compensate — to compensate or reward excessively; overpay: Some stockholders feel the executives are being overcompensated and that bonuses should be reduced.
over-compliance — the act of conforming, acquiescing, or yielding.
over-confidence — too confident.
over-controlled — to exercise restraint or direction over; dominate; command: The car is difficult to control at high speeds. That zone is controlled by enemy troops.
over-correction — correction beyond what is needed or customary, especially when leading to error; overadjustment: The pilot made an overcorrection for headwinds.
over-excitement — to excite too much.

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