12-letter words containing r, h, o, d
- drinker moth — a large yellowish-brown bombycid eggar moth, Philudoria potatoria, having a stout hairy body, the larvae of which drink dew and feed on grasses
- drop shipper — a wholesaler or distributor who conducts business in drop shipments.
- droughtiness — Dryness of the weather; lack of rain.
- drove chisel — a chisel with a broad edge used for dressing stone
- drug holiday — a brief period during which a patient stops taking a prescribed medication, especially an antidepressant, to recover some normal functions, reduce side effects, or maintain sensitivity to the drug.
- dryopithecus — an extinct genus of generalized hominoids that lived in Europe and Africa during the Miocene Epoch and whose members are characterized by small molars and incisors.
- dutch borneo — the former name of the southern and larger part of the island of Borneo: now part of Indonesia.
- dutch clover — white clover.
- dutch harbor — a U.S. naval base on Unalaska Island, in the Aleutian Islands.
- dysmenorrhea — painful menstruation.
- earth almond — chufa.
- echinodermal — (zoology) Relating or belonging to the echinoderms.
- echo sounder — a sonar instrument that uses echolocation to measure depths under water.
- edaphosaurus — Any of several dinosaurs of the family Edaphosauridae, from the Carboniferous and Permian periods, that had a distinctive dorsal sail or crest.
- emerald moth — any of various green geometrid moths, esp the large emerald (Geometra papilionaria) a handsome pale green moth with white wavy markings
- enarthrodial — Relating to an enarthrosis.
- enchiridions — Plural form of enchiridion.
- endochondral — occurring, or present, in cartilage
- endomorphism — changes in a cooling body of igneous rock brought about by assimilation of fragments of, or chemical reaction with, the surrounding country rock
- endotracheal — Situated or occurring within or performed by way of the trachea.
- erythroderma — An inflammatory skin disease with erythema and scaling that affects nearly the entire cutaneous surface.
- exheredation — A disinheriting; disherison.
- field theory — a detailed mathematical description of the distribution and movement of matter under the influence of one or more fields.
- field-holler — a cry employing falsetto, portamento, and sudden changes of pitch, used in African-American work songs, later integrated into the techniques of the blues
- 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.
- flower child — (especially in the 1960s) a young person, especially a hippie, rejecting conventional society and advocating love, peace, and simple, idealistic values.
- foolhardiest — Superlative form of foolhardy.
- forced march — any march that is longer than troops are accustomed to and maintained at a faster pace than usual, generally undertaken for a particular objective under emergency conditions.
- foreadmonish — (rare, transitive) To admonish beforehand, or before the act or event.
- foregathered — Simple past tense and past participle of foregather.
- forehandedly — Prudently, with thrift and foresight.
- foreshadowed — Simple past tense and past participle of foreshadow.
- foreshadower — One who or that which foreshadows.
- forked chain — branched chain.
- formaldehyde — a colorless, toxic, potentially carcinogenic, water-soluble gas, CH 2 O, having a suffocating odor, usually derived from methyl alcohol by oxidation: used chiefly in aqueous solution, as a disinfectant and preservative, and in the manufacture of various resins and plastics.
- forward push — A forward push is a feature of distillation columns (= tall vessels for distillation) in which zones that allow higher contact between substances are near the top of the column.
- foster child — a child raised by someone who is not its natural or adoptive parent.
- four hundred — the exclusive social set of a city or area.
- four-in-hand — a long necktie to be tied in a slipknot with the ends left hanging.
- fourth grade — school year: age 9-10
- fourth world — the world's most poverty-stricken nations, especially in Africa and Asia, marked by very low GNP per capita and great dependence upon foreign economic aid.
- french broad — a river in W North Carolina and E Tennessee, flowing N and NW to join the Holston River at Knoxville to form the Tennessee River. 210 miles (338 km) long.
- french doors — a door having glass panes throughout or nearly throughout its length.
- geohydrology — hydrogeology.
- go hard with — to cause pain or difficulty to (someone)
- go the round — to be circulated among a number of people: said of a story, rumor, etc.
- god-botherer — an over-zealous Christian
- goddaughters — Plural form of goddaughter.
- gold therapy — administration of gold salts as a treatment for disease, especially rheumatoid arthritis.