11-letter words containing p, e, c, t, o, r
- proteolytic — the breaking down of proteins into simpler compounds, as in digestion.
- proterozoic — noting or pertaining to the latter half of the Precambrian Era, from about 2.5 billion to 570 million years ago, characterized by the appearance of bacteria and marine algae; Algonkian.
- protocolize — to make a protocol of
- protodeacon — a chief deacon in the Greek Church.
- protopectin — any of the class of water-insoluble pectic substances that are found in the rind of citrus fruits or in apple peels and that are hydrolyzed to pectin or pectic acid.
- protractile — capable of being protracted, lengthened, or protruded.
- protractive — to draw out or lengthen, especially in time; extend the duration of; prolong.
- provocateur — a person who provokes trouble, causes dissension, or the like; agitator.
- provocative — tending or serving to provoke; inciting, stimulating, irritating, or vexing.
- psychometer — a device for measuring mental or psychological activity
- psychometry — Psychology. psychometrics.
- pterodactyl — any of a number of genera of flying reptiles of the extinct order Pterosauria, from the Jurassic and Cretaceous periods, having a highly reduced tail and teeth and a birdlike beak.
- puerto rico — an island in the central West Indies: a commonwealth associated with the U.S. 3435 sq. mi. (8895 sq. km). Capital: San Juan. Abbreviation: P.R., PR.
- pylorectomy — the surgical removal of all or part of the pylorus, often including the adjacent portion of the stomach (partial gastrectomy)
- pyrogenetic — heat-producing
- pyrokinetic — the ability to set objects or people on fire through the concentration of psychic power.
- pyrotechnic — of or relating to pyrotechnics.
- pyroxenitic — relating to pyroxenite
- reciprocant — a differential invariant
- reciprocate — to give, feel, etc., in return.
- reciprocity — a reciprocal state or relation.
- recuperator — a person or thing that recuperates.
- reject shop — a shop that sells damaged or imperfect products that cannot be sold at the full price
- replication — a reply; answer.
- report back — If you report back to someone, you tell them about something that they asked you to find out about.
- report card — a written report containing an evaluation of a pupil's scholarship and behavior, sent periodically to the pupil's parents or guardian, usually on a card containing marks and comments together with a record of attendance.
- rescription — a reply or answering of a letter
- retinoscope — an apparatus that determines the refractive power of the eye by observing the lights and shadows on the pupil when a mirror illumines the retina; skiascope.
- retinoscopy — an objective method of determining the refractive error of an eye.
- riot police — police armed against public disorder
- rocket ship — a rocket-propelled aircraft or spacecraft.
- rope socket — either of a pair of matching fittings fastened to the ends of lengths of wire rope to join them together.
- rope stitch — (in embroidery) a stitch formed from the entwining of stitches.
- spatterdock — any of various water lilies of the genus Nuphar, having globular yellow flowers and growing in lakes or sluggish streams, especially N. advena, of the eastern U.S.
- spectrogram — a representation or photograph of a spectrum.
- spectrology — the study of ghosts, phantoms, or apparitions.
- speculatory — a place suitable for observation
- spent force — If you refer to someone who used to be powerful as a spent force, you mean that they no longer have any power or influence.
- sperm count — the number of spermatozoa in an amount of semen, used as an indication of a man's fertility
- spermatoxic — (of a substance) toxic to spermatozoa.
- spermotoxic — (of a substance) toxic to spermatozoa.
- spice route — an ancient trade route followed by merchants, importers and exporters trading in exotic spices such as cloves and cinnamon
- spirochaete — any of various spiral-shaped motile bacteria of the family Spirochaetaceae, certain species, as Treponema, Leptospira, and Borrelia, being pathogenic to humans and other animals, and other species being free-living, saprophytic, or parasitic.
- stauroscope — an optical instrument for studying the crystal structure of minerals under polarized light
- step rocket — a multistage rocket that discards burned-out stages.
- stereoptics — the branch of stereoscopy that is concerned with optics
- stereoscope — an optical instrument through which two pictures of the same object, taken from slightly different points of view, are viewed, one by each eye, producing the effect of a single picture of the object, with the appearance of depth or relief.
- stereoscopy — the study of the stereoscope and its techniques.
- stereotypic — a process, now often replaced by more advanced methods, for making metal printing plates by taking a mold of composed type or the like in papier-mâché or other material and then taking from this mold a cast in type metal.
- stock power — a power of attorney permitting a person other than the owner of stock in a corporation to transfer the title of ownership to a third party.