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10-letter words containing r, o, t, h

  • protophyte — a single-celled plant of the class Protophyta
  • prototroph — a microorganism that has the same nutritional requirements as the parent organism. Compare auxotroph.
  • pyrethroid — any of several synthetic compounds that are similar to but more persistent than natural pyrethrins.
  • pyrotechny — the art of making fireworks
  • pyrrhotite — a common mineral, iron sulfide, approximately FeS but variable because of a partial absence of ferrous ions, occurring in massive and in crystal forms with a bronze color and metallic luster; magnetic pyrites: generally slightly magnetic.
  • pyrrophyta — a phylum in the kingdom Protista comprising the dinoflagellates and cryptomonads.
  • pyrrophyte — any of various single-celled, biflagellated algae, of the phylum Pyrrophyta, especially the dinoflagellates.
  • pythagoras — c582–c500 b.c, Greek philosopher, mathematician, and religious reformer.
  • quickthorn — hawthorn, esp when planted as a hedge
  • rachiotomy — (surgery) The surgical procedure of cutting, or making an incision in a vertebra.
  • radiophoto — an image created by radio waves rather than light
  • rawsthorne — Alan. 1905–71, English composer, whose works include three symphonies, several concertos, and a set of Symphonic Studies (1939)
  • razor-thin — A razor-thin majority or profit is a very small one.
  • regal moth — a large moth, Citheronia regalis, having yellow spots on gray to olive forewings and on orange-red hind wings.
  • restharrow — a low, pink-flowered European shrub, Ononis spinosa, of the legume family, having tough roots that hinder the plow or harrow.
  • retrochoir — that part of a church behind the choir or the main altar.
  • rhabdolith — a minute rodlike structure, believed by some to be algae, found at the bottom and the surface of the ocean, and which is composed of calcium carbonate, calcium or limestone
  • rhapsodist — a person who rhapsodizes.
  • rheopectic — the property exhibited by certain slow-gelling, thixotropic sols of gelling more rapidly when the containing vessel is shaken gently.
  • rheostatic — an adjustable resistor so constructed that its resistance may be changed without opening the circuit in which it is connected, thereby controlling the current in the circuit.
  • rhetorical — used for, belonging to, or concerned with mere style or effect.
  • rheumatoid — resembling rheumatism.
  • rhinestone — an artificial gem of paste, often cut to resemble a diamond.
  • rhinotheca — the covering of the upper part of the beak in birds
  • rhodoplast — a plastid found in red algae, containing red pigment as well as chlorophyll
  • rhotacized — to change (a sound) to an (r); subject to rhotacism.
  • richthofen — Baron Manfred von [mahn-freyt fuh n] /ˈmɑn freɪt fən/ (Show IPA), ("Red Baron"or"Red Knight") 1892–1918, German aviator.
  • ricocheted — the motion of an object or a projectile in rebounding or deflecting one or more times from the surface over which it is passing or against which it hits a glancing blow.
  • rifle shot — sound of shotgun fire
  • right join — outer join
  • rightabout — the position assumed by turning about to the right so as to face in the opposite direction.
  • ring shout — a group dance of West African origin introduced into parts of the southern U.S. by black revivalists, performed by shuffling counterclockwise in a circle while answering shouts of a preacher with corresponding shouts, and held to be, in its vigorous antiphonal patterns, a source in the development of jazz.
  • ring-shout — a group dance of West African origin introduced into parts of the southern U.S. by black revivalists, performed by shuffling counterclockwise in a circle while answering shouts of a preacher with corresponding shouts, and held to be, in its vigorous antiphonal patterns, a source in the development of jazz.
  • roadworthy — in suitable operating condition or meeting accepted standards for safe driving on the road: a roadworthy automobile.
  • rom. cath. — Roman Catholic
  • roman bath — public spa
  • roof light — a window built into a roof to admit light and ventilation
  • rotary hoe — a cultivating implement consisting of a row of wheels each with many fingerlike prongs, pulled over the ground to break up the soil and destroy weeds.
  • rothermere — 1st Viscount, Harold Sidney Harmsworth.
  • rothschild — Lionel Nathan, Baron de ("Lord Natty") 1809–79, English banker: first Jewish member of Parliament (son of Nathan Meyer Rothschild).
  • routemarch — march in which a unit retains its column formation but individuals are allowed to break step.
  • rubythroat — a ruby-throated hummingbird
  • ruthenious — containing bivalent ruthenium.
  • rutherford — Daniel, 1749–1819, Scottish physician and chemist: discoverer of nitrogen.
  • sailor hat — a hat with a flat round crown and fairly broad brim that is rolled upwards
  • salt horse — salted beef; salt junk.
  • samothrace — a Greek island in the NE Aegean.
  • saprophyte — any organism that lives on dead organic matter, as certain fungi and bacteria.
  • saprotroph — any organism, esp a fungus or bacterium, that lives and feeds on dead organic matter
  • schwarzlot — a type of black decoration on German glassware and ceramics that was popular in the 17th and 18th centuries
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