12-letter words containing ope
- operatorship — (in the oil and gas industries) the right to operate a well, field, or other oil source.
- orthopedical — (American spelling) Alternative form of orthopaedical.
- oscilloscope — a device that gives a visual graph of amplitude versus time of a measured signal, as voltage or current.
- pan-european — of or relating to all or most of the countries of Europe.
- pancytopenia — an abnormally low level of all blood cells
- party pooper — a person who hasn't the interest or vitality to participate actively in a social party and whose mood, attitude, or personality lessens others' enjoyment; killjoy.
- pay envelope — an envelope containing a paycheck or wages.
- pharmacopeia — a book published usually under the jurisdiction of the government and containing a list of drugs, their formulas, methods for making medicinal preparations, requirements and tests for their strength and purity, and other related information.
- pot-walloper — (in some boroughs before the Reform Bill of 1832) a man who qualified as a householder, and therefore a voter, by virtue of ownership of his own fireplace at which to boil pots.
- praxinoscope — a toy in which a sequence of images, depicted on the inner surface of a cylinder and reflected in a series of mirrors, gives the illusion of motion as the cylinder rotates
- preoperative — occurring or related to the period or preparations before a surgical operation.
- pro-european — of or relating to Europe or its inhabitants.
- propenseness — propensity
- proper class — a class which cannot itself be a member of other classes
- proper psalm — a psalm used only on a particular day or feast
- proper value — characteristic root.
- property law — the branch of law dealing with issues relating to land and houses
- property man — a member of the stage crew in charge of the stage properties
- property tax — a tax levied on real or personal property.
- propertyless — that which a person owns; the possession or possessions of a particular owner: They lost all their property in the fire.
- radioisotope — a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.
- resectoscope — a thin, hollow, flexible surgical instrument inserted through the urethra or vagina for use in the biopsy of tissue or the removal of lesions from the prostate gland, bladder, or uterus
- saint-tropez — a town in SE France, on the French Riviera: beach resort.
- schopenhauer — Arthur [ahr-too r] /ˈɑr tʊər/ (Show IPA), 1788–1860, German philosopher.
- scolopendrid — any myriapod of the order Scolopendrida, including many large, poisonous centipedes.
- scopes trial — John Thomas, 1901–70, U.S. high-school teacher whose teaching of the Darwinian theory of evolution became a cause célèbre (Scopes Trial or Monkey Trial) in 1925.
- sloped roman — a roman (vertical) typeface, usually sans serif, i.e. without the small, decorative, terminal strokes with which some typefaces are designed. The typeface is made to slope (usually to the right), but not generally to the same degree as a true italic typeface
- snooperscope — a device that displays on a fluorescent screen reflected infrared radiation, enabling the user to see objects obscured by darkness.
- spectroscope — an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
- sphygmoscope — a device for studying or examining the pulse
- stauropegion — (in an autocephalous church) a monastery subject directly to the primate.
- stormtrooper — Stormtroopers were members of a private Nazi army who were well-known for being violent.
- subopercular — of or relating to the suboperculum
- suboperculum — a bone in fishes behind the operculum or gill covering
- synchroscope — an instrument for determining the difference in phase between two related motions, as those of two aircraft engines or two electric generators.
- teleoperator — a robotic device controlled from a distance by a human operator: usually used to provide safety for the operator, as in working with radioactive materials
- thoracoscope — an instrument used for examining the pleural cavity
- to fall open — If something falls open, it opens accidentally.
- to open fire — If you open fire on someone, you start shooting at them.
- trevor-roper — Hugh (Redwald) [red-wawld] /ˈrɛd wɔld/ (Show IPA), 1914–2003, British historian.
- unpropertied — owning property: the propertied class.
- urethroscope — an apparatus for observing the urethra.
- whooper swan — a common, Old World swan, Cygnus cygnus, distinguished by a yellow patch at the base of its bill, noted for its whooping cry.