12-letter words containing h, o, a, r
- earth-moving — Earth-moving equipment is machinery that is used for digging and moving large amounts of soil.
- echinodermal — (zoology) Relating or belonging to the echinoderms.
- echo chamber — a room or studio with resonant walls for broadcasting or recording echoes or hollow sound effects.
- echolocators — Plural form of echolocator.
- ectypography — a form of etching or engraving in which the design is produced in relief
- edaphosaurus — Any of several dinosaurs of the family Edaphosauridae, from the Carboniferous and Permian periods, that had a distinctive dorsal sail or crest.
- elasmobranch — A cartilaginous fish of a group that comprises the sharks, rays, and skates.
- 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
- electrograph — A machine used in gravure printing.
- ellipsograph — an instrument that draws ellipses
- emerald moth — any of various green geometrid moths, esp the large emerald (Geometra papilionaria) a handsome pale green moth with white wavy markings
- enantiomorph — Each of two crystalline or other geometric forms that are mirror images of each other.
- enarthrodial — Relating to an enarthrosis.
- encroachment — Intrusion on a person's territory, rights, etc.
- endochondral — occurring, or present, in cartilage
- endotracheal — Situated or occurring within or performed by way of the trachea.
- enharmonical — relating to the enharmonic scale
- epanorthosis — (rhetoric) A rhetorical device or element in which a speaker or writer retracts a word that has been spoken and substitutes a stronger or more suitable word; often done for emphasis or sarcasm.
- eratosthenes — ?276–?194 bc, Greek mathematician and astronomer, who calculated the circumference of the earth by observing the angle of the sun's rays at different places
- erythematous — Of or pertaining to erythema.
- erythroblast — An immature erythrocyte containing a nucleus.
- erythroderma — An inflammatory skin disease with erythema and scaling that affects nearly the entire cutaneous surface.
- erythropenia — A decrease in the number of erythrocytes, associated with anemia.
- etherization — (surgery) anaesthetization using ether.
- etheromaniac — a person who is addicted to ether
- ethnographer — One who practices ethnography.
- ethnographic — Relating to ethnography.
- euphorically — In a euphoric manner.
- eutrophicate — (ecology, intransitive) To become eutrophic.
- evaporograph — an instrument which measures and records the rate of evaporation of water into the atmosphere
- exheredation — A disinheriting; disherison.
- exhilaration — A feeling of excitement, happiness, or elation.
- exhortations — Plural form of exhortation.
- factory ship — a whaling ship equipped to process killed whales and to transport the oil and by-products.
- fair housing — the sale and rental of private housing free of discriminatory practices or policies.
- fall through — to drop or descend under the force of gravity, as to a lower place through loss or lack of support.
- feather shot — fine bean shot.
- firth of tay — the estuary of the River Tay on the North Sea coast of Scotland. Length: 40 km (25 miles)
- fish factory — a factory where fish is processed
- flamethrower — a weapon, either mounted or portable, that sprays ignited incendiary fuel for some distance.
- flash memory — Computers. a type of reprogrammable memory that retains information even with the power turned off.
- flash powder — powder that could be ignited to provide a bright light to take a photograph
- flashforward — a device in the narrative of a motion picture, novel, etc., by which a future event or scene is inserted into the chronological structure of the work.
- flight arrow — an arrow having a conical or pyramidal head without barbs.
- flour shaker — a container, often with a perforated top, from which flour is shaken
- flowcharting — (computing) the design and construction of flowcharts.
- fluoranthene — (organic compound) A polycyclic aromatic hydrocarbon consisting of a benzene ring attached to each of the rings of a naphthalene molecule; it is carcinogenic, and is a product of incomplete combustion.
- fluorography — photofluorography.
- foolhardiest — Superlative form of foolhardy.
- for a change — contrary to the norm