12-letter words containing r, o, s
- e-thrombosis — a clot in the bloodstream caused by long periods spent being physically inactive at a computer
- earth closet — a type of lavatory in which earth is used to cover excreta
- east detroit — a city in SE Michigan.
- eavesdropped — Simple past tense and past participle of eavesdrop.
- eavesdropper — to listen secretly to a private conversation.
- echo sounder — a sonar instrument that uses echolocation to measure depths under water.
- echolocators — Plural form of echolocator.
- econometrics — the application of statistical and mathematical techniques in solving problems as well as in testing and demonstrating theories.
- econometrist — An econometrician.
- ecotarianism — the principle or practice of avoiding eating any foods whose production or transportation are considered ecologically damaging
- ecoterrorism — Violence carried out to further environmentalist ends.
- ecoterrorist — one who commits ecotage; monkey-wrencher.
- ectoparasite — an external parasite (opposed to endoparasite).
- edaphosaurus — Any of several dinosaurs of the family Edaphosauridae, from the Carboniferous and Permian periods, that had a distinctive dorsal sail or crest.
- editorialise — Alternative spelling of editorialize.
- editorialist — an article in a newspaper or other periodical or on a website presenting the opinion of the publisher, writer, or editor.
- efflorescent — efflorescing; blossoming.
- efflorescing — Present participle of effloresce.
- effortlessly — requiring or involving no effort; displaying no signs of effort; easy: an effortless writing style.
- effronteries — Plural form of effrontery.
- effusiometer — an apparatus for determining rates of effusion of gases, usually used for measuring molecular weights
- eggdrop soup — a soup made by stirring beaten eggs into a simmering broth.
- ehrlichiosis — (medicine) A tick-borne disease caused by infection with bacteria of the genus Ehrlichia.
- eigenvectors — Plural form of eigenvector.
- ejector seat — An ejector seat is a special seat which can throw the pilot out of a fast military aircraft in an emergency.
- elaborations — Plural form of elaboration.
- elasmobranch — A cartilaginous fish of a group that comprises the sharks, rays, and skates.
- elbow grease — physical effort
- electioneers — Third-person singular simple present indicative form of electioneer.
- electroclash — a type of electronic music, originating in the first decade of the 21st century, that combines modern techno with synthesizer music characteristic of the 1980s
- electrocutes — Third-person singular simple present indicative form of electrocute.
- electrolysis — Chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
- electrolytes — Plural form of electrolyte.
- electroscope — An instrument for detecting and measuring electricity, especially as an indication of the ionization of air by radioactivity.
- electroshock — Of or relating to medical treatment by means of electric shocks.
- electrosonde — a sonde that measures the electric potential in the atmosphere
- electrotonus — the change in the state of irritability and conductivity of a nerve or muscle caused by the passage of an electric current
- electrotypes — Plural form of electrotype.
- eleemosynary — Of, relating to, or dependent on charity; charitable.
- elfin forest — the zone of stunted wind-blown trees growing at high altitudes just above the timberline on tropical mountains
- ellipsograph — an instrument that draws ellipses
- elytrigerous — having elytra
- emancipators — Plural form of emancipator.
- emblazonries — Plural form of emblazonry.
- embourgeoise — to make bourgeois
- embrocations — Plural form of embrocation.
- embroiderers — Plural form of embroiderer.
- embroideries — Plural form of embroidery.
- embryologist — An expert or specialist in embryology.
- en casserole — (baked and served) in a casserole