12-letter words containing h, a, i, r, m
- dermographic — dermatographia.
- diastrophism — the process of movement and deformation of the earth's crust that gives rise to large-scale features such as continents, ocean basins, and mountains
- diathermancy — the property of transmitting infrared radiation
- dichromatism — the quality or condition of being dichromatic
- disharmonize — (intransitive) To cause disorder.
- dithyrambist — a writer or performer of dithyrambs
- dolphinarium — An aquarium in which dolphins are kept and trained for public entertainment.
- drum machine — a device that simulates percussion sounds in various combinations and rhythms, and can alter digitally stored drum sounds or make digital recordings of drum sounds.
- dysrhythmias — Plural form of dysrhythmia.
- earth summit — a summit conference of 100 or more earth leaders debating global environmental and development issues, specifically the summit held in Rio de Janeiro in 1992, but the term is also applied e.g. to a projected similar event in 2012
- 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.
- enantiomorph — Each of two crystalline or other geometric forms that are mirror images of each other.
- enharmonical — relating to the enharmonic scale
- ephemerality — (uncountable) The state or condition of being ephemeral; transience.
- ephemeridian — relating to ephemera
- epirrhematic — relating to epirrhema
- etheromaniac — a person who is addicted to ether
- examinership — the office or function of an examiner
- fairy shrimp — any member of the crustacean order Anostraca, characterized by an elongate trunk with more than 20 segments and the absence of a carapace, typically found swimming ventral side up in fresh water.
- father image — a person substituted in one's mind for one's father and often the object of emotions felt toward the father
- fire marshal — an official heading a bureau for the prevention or investigation of fires.
- fish farming — the job of rearing fish for commercial purposes
- flyfisherman — Flyfisher.
- foreadmonish — (rare, transitive) To admonish beforehand, or before the act or event.
- foreman-ship — a person in charge of a particular department, group of workers, etc., as in a factory or the like.
- freshmanship — the state of being a freshman; the period during which a student is considered to be a freshman
- garnishments — Plural form of garnishment.
- german sixth — (in musical harmony) an augmented sixth chord having a major third and a perfect fifth between the root and the augmented sixth
- germanophile — a person who is friendly toward or admires or studies Germany or German culture.
- gothic armor — white armor of the 15th century, marked especially by much fluting and ornamentation.
- gramophonist — a person who uses a gramophone
- granny smith — a variety of crisp, green-skinned apple, for eating raw or for cooking.
- great schism — a period of division in the Roman Catholic Church, 1378–1417, over papal succession, during which there were two, or sometimes three, claimants to the papal office.
- haemoprotein — Alternative spelling of hemoprotein.
- haemorrhagic — (chiefly, British) alternative spelling of hemorrhagic.
- haemorrhoids — Plural form of haemorrhoid.
- haemosiderin — Alternative form of hemosiderin.
- hair implant — the insertion of synthetic fibers or human hair into the scalp to cover baldness.
- hair removal — depilatory treatment
- hair remover — depilatory cream
- hamarthritis — a swollen and painful condition that can affect all the joints
- hamartiology — the doctrine of sin in Christian theology
- hammer drill — a rock drill operated by compressed air in which the boring bit is not attached to the reciprocating piston
- hammer price — the price offered as the winning bid in a public auction
- hamstringing — Present participle of hamstring.
- harlem river — tidal river separating Manhattan Island from the Bronx &, with Spuyten Duyvil Creek, connecting the East River with the Hudson: c. 8 mi (12.9 km)
- harmonic law — any one of three laws governing planetary motion: each planet revolves in an ellipse, with the sun at one focus; the line connecting a planet to the sun sweeps out equal areas in equal periods of time (law of areas) or the square of the period of revolution of each planet is proportional to the cube of the semimajor axis of the planet's orbit (harmonic law)
- harmonically — pertaining to harmony, as distinguished from melody and rhythm.
- 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