15-letter words containing r, e, n, o, l
- nonreproducible — Unable to be reproduced; not reproducible.
- nontransferable — Not transferable; not able to be transferred.
- norethandrolone — An anabolic steroid.
- norfolk terrier — one of an English breed of small short-legged hunting terriers having a straight, wiry, red, black and tan, or grizzle coat, and dropped ears that distinguish it from the Norwich terrier.
- normally-closed — Normally-closed switch contacts are in a closed state at rest.
- north las vegas — a city in S Nevada.
- northeastwardly — Towards the northeast.
- northern lights — aurora borealis.
- northern oriole — an oriole, Icterus galbula, of North America, with highly distinctive eastern and western subspecies that interbreed in the Great Plains region.
- northern parula — any of several American wood warblers of the genus Parula, especially P. americana (northern parula) having bluish plumage with a yellow throat and breast.
- northwestwardly — Towards the northwest.
- not be yourself — If you say that you are not yourself, you mean you are not feeling well.
- 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
- 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.
- observationally — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- obtuse triangle — a triangle with one obtuse angle.
- oil of lavender — an essential oil distilled from lavender flowers, especially Lavandula angustifolia and L. stoechas, and used in perfumery.
- oil tanker pier — An oil tanker pier is a structure over water where oil tankers can stop and load or unload.
- old boy network — an exclusive network that links members of a profession, social class, or organization or the alumni of a particular school through which the individuals assist one another in business, politics, etc.
- old high german — High German before 1100. Abbreviation: OHG.
- old man's beard — fringe tree.
- old-boy network — an exclusive network that links members of a profession, social class, or organization or the alumni of a particular school through which the individuals assist one another in business, politics, etc.
- old-man's-beard — fringe tree.
- oldenbarneveldt — Johan van. 1547–1619, Dutch statesman, regarded as a founder of Dutch independence; the leading figure (from 1586) in the United Provinces of the Netherlands: executed by Maurice of Nassau
- 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.
- oligodendroglia — Oligodendrocytes collectively.
- oligomerisation — Alternative spelling of oligomerization.
- oligomerization — (chemistry) The formation of an oligomer from a monomer.
- omnidirectional — sending or receiving signals in all directions: an omnidirectional microphone.
- on the trail of — If you are on the trail of a person or thing, you are trying hard to find them or find out about them.
- one's last hour — the time of one's death
- open enrollment — open admissions.
- operating cycle — the period of time between starting a business and making a profit
- operating table — table on which surgery is performed
- operationalised — Simple past tense and past participle of operationalise.
- operationalized — Simple past tense and past participle of operationalize.
- 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 milkweed — butterfly weed (def 1).
- orchestrational — Of or pertaining to orchestration.
- ordered n-tuple — a set of n objects or quantities, where n is an integer, especially such a set arranged in a specified order (ordered n-tuple)
- ordinal numbers — Also called ordinal numeral. any of the numbers that express degree, quality, or position in a series, as first, second, and third (distinguished from cardinal number).
- organized labor — all workers who are organized in labor unions.
- organochlorines — Plural form of organochlorine.
- organomercurial — an organic compound containing mercury