12-letter words containing d, r, a, m
- hammer drill — a rock drill operated by compressed air in which the boring bit is not attached to the reciprocating piston
- handcraftman — handicraftsman.
- hard-mouthed — of or relating to a horse not sensitive to the pressure of a bit.
- harmonichord — a musical instrument resembling an upright piano intended to fuse the sound of a violin with the functionality of a piano, the tone therefore produced using friction rather than through striking
- headforemost — headfirst (def 1).
- headmasterly — In a manner befitting a headmaster.
- headmistress — a woman in charge of a private school.
- hemichordate — belonging or pertaining to the chordates of the phylum Hemichordata, comprising small, widely distributed, marine animals, as the acorn worms.
- hemihydrates — Plural form of hemihydrate.
- hemodialyzer — artificial kidney.
- hemorrhoidal — Usually, hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid)
- hereditament — any inheritable estate or interest in property.
- heroic drama — Restoration tragedy, especially that popular in England c1660–1700, using highly rhetorical language and written in heroic couplets.
- hidrocystoma — An adenoma of the sweat glands.
- holidaymaker — vacationer.
- home address — the address of one's house or flat
- home and dry — If you say that someone is, in British English home and dry, or in American English home free, you mean that they have been successful or that they are certain to be successful.
- homesteaders — Plural form of homesteader.
- hydatidiform — like or resembling a hydatid
- hydrargyrism — mercurialism.
- hydrobromate — (chemistry) hydrobromide.
- hydrodynamic — pertaining to forces in or motions of liquids.
- hydromedusae — Irregular plural form of hydromedusa.
- hydrothermal — noting or pertaining to the action of hot, aqueous solutions or gases within or on the surface of the earth.
- hyperdynamic — (physiology) Describing an increase in both blood pressure and pulse pressure.
- hypermediacy — Hypermedia literacy; the state of being conversant with hypermedia technologies.
- icbm address — (networking, humour) (Or "missile address") The form used to register a site with the Usenet mapping project includes a space for longitude and latitude, preferably to seconds-of-arc accuracy. This is actually used for generating geographically-correct maps of Usenet links on a plotter; however, it has become traditional to refer to this as one's "ICBM address" or "missile address", and many people include it in their sig block with that name. (A real missile address would include target altitude.)
- idea hamster — a person who is employed as a source of new ideas
- ill-mannered — having bad or poor manners; impolite; discourteous; rude.
- imidacloprid — The insecticide 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine used to control fleas in domestic pets.
- immoderately — In an immoderate manner.
- immoderation — lack of moderation.
- immortalised — to bestow unending fame upon; perpetuate.
- immortalized — to bestow unending fame upon; perpetuate.
- imparadising — Present participle of imparadise.
- impardonable — (obsolete) unpardonable.
- imperforated — Also, imperforated. not perforate; having no perforation.
- imperialised — Simple past tense and past participle of imperialise.
- imperialized — Simple past tense and past participle of imperialize.
- impersonated — to assume the character or appearance of; pretend to be: He was arrested for impersonating a police officer.
- imponderable — not ponderable; that cannot be precisely determined, measured, or evaluated.
- import trade — goods, services and products brought into a country and which were bought from another country
- incendiarism — the act or practice of an arsonist; malicious burning.
- incriminated — Simple past tense and past participle of incriminate.
- informidable — (obsolete) Not formidable; not to be feared or dreaded.
- infrakingdom — (taxonomy) A taxonomic category sometimes inserted below subkingdom.
- intermarried — Simple past tense and past participle of intermarry.
- intermediacy — the state of being intermediate or of acting intermediately.
- intermediary — an intermediate agent or agency; a go-between or mediator.
- intermediate — being, situated, or acting between two points, stages, things, persons, etc.: the intermediate steps in a procedure.