12-letter words containing p, r, o, t, c, h
- prophylactic — defending or protecting from disease or infection, as a drug.
- protomorphic — having a primitive character or structure.
- prototrophic — (especially of certain bacteria) requiring only inorganic substances for growth.
- psychometric — Psychology. psychometrics.
- psychotronic — of or relating to a genre of usually low-budget movies that includes horror, fantasy, science-fiction, and underground films.
- psychotropic — affecting mental activity, behavior, or perception, as a mood-altering drug.
- psychrometer — an instrument for determining atmospheric humidity by the reading of two thermometers, the bulb of one being kept moist and ventilated.
- psychrometry — the employment of the psychrometer.
- pyrocatechol — catechol.
- pyrotechnics — the art of making fireworks.
- pyrotechnist — a person skilled in pyrotechnics, especially in the manufacture or use of fireworks.
- retrophiliac — someone who has a strong liking for things from the past
- rhamphotheca — the horny covering of a bird's bill.
- rheoreceptor — a receptor of fishes and aquatic amphibians stimulated by water currents.
- rostropovich — Mstislav (Leopoldovich) [mis-tuh-slahv lee-uh-pohl-duh-vich;; Russian mstyi-slahf lyi-uh-pawl-duh-vyich] /ˈmɪs təˌslɑv ˌli əˈpoʊl də vɪtʃ;; Russian mstyɪˈslɑf lyɪ əˈpɔl də vyɪtʃ/ (Show IPA), 1927–2007, Soviet cellist and conductor (husband of Galina Vishnevskaya).
- router patch — a plywood panel patch with parallel sides and rounded ends.
- scratchproof — resistant to scratches.
- shock troops — soldiers trained to attack
- short splice — a splice used when an increased thickness of the united rope is not objectionable, made by unlaying the rope ends a certain distance, uniting them so that their strands overlap, then tucking each alternately over and under others several times.
- soccer pitch — the field of play used in soccer
- spectrograph — a spectroscope for photographing or producing a representation of a spectrum.
- spermophytic — able to produce seed
- spirochaetal — resulting from spirochaetes
- stenographic — the art of writing in shorthand.
- stereophonic — pertaining to a system of sound recording or reproduction using two or more separate channels to produce a more realistic effect by capturing the spatial dimensions of a performance (the location of performers as well as their acoustic surroundings), used especially with high-fidelity recordings and reproduction systems (opposed to monophonic).
- stylographic — of or relating to a stylograph.
- tech support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
- technography — the description and study of the arts and sciences in their geographical and ethnic distribution and historical development.
- tetramorphic — (in art) of or related to a composite representation of the four evangelists' symbols
- the scorpion — the constellation Scorpio, the eighth sign of the zodiac
- theanthropic — of or relating to both God or a god and human beings; both divine and human.
- thermocouple — a device that consists of the junction of two dissimilar metallic conductors, as copper and iron, in which an electromotive force is induced when the conductors are maintained at different temperatures, the force being related to the temperature difference: used to determine the temperature of a third substance by connecting it to the junction of the metals and measuring the electromotive force produced.
- thermophilic — growing best in a warm environment.
- thermotropic — oriented growth of an organism in response to heat.
- thoracoscope — an instrument used for examining the pleural cavity
- thyrotrophic — capable of stimulating the thyroid gland.
- tracheophyte — any plant of the former division Tracheophyta, comprising all the vascular plants.
- tracheoscopy — examination of the interior of the trachea, as with a laryngoscope.
- tricephalous — with three heads
- trichinopoly — a city in central Tamil Nadu, in S India, on the Kaveri River.
- trichophyton — a parasitic fungus belonging to the genus Trichophyton that can infect human skin, hair, and nails
- trichopteran — trichopterous.
- trichopteron — trichopteran.
- trophobiotic — involving, belonging or relating to trophobiosis
- trophotactic — of or relating to trophotaxis
- trophotropic — of or relating to trophotropism
- trophy child — anything taken in war, hunting, competition, etc., especially when preserved as a memento; spoil, prize, or award.
- urethroscope — an apparatus for observing the urethra.
- urethroscopy — observation of the urethra by a urethroscope.
- victory ship — a fast, turbine-powered cargo ship of World War II, having a capacity of about 11,000 dead-weight tons.