12-letter words containing a, r, t, h, o, m
- chromatopsia — an irregularity in the ability to see colours properly
- chromonemata — a chromosome thread that is relatively uncoiled at early prophase but assumes a spiral form at metaphase.
- chromoplasts — Plural form of chromoplast.
- cometography — the scientific description and recording of comets
- countercharm — an object or action that is capable of destroying a magical charm
- countermarch — to march or cause to march back along the same route
- crymotherapy — cryotherapy.
- dephlegmator — an apparatus used for dephlegmation
- dermatophyte — any parasitic fungus that affects the skin
- 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
- dichromatism — the quality or condition of being dichromatic
- earth almond — chufa.
- earth mother — the earth conceived of as the female principle of fertility and the source of all life.
- earth tremor — a relatively small or short-lived movement of the earth's surface caused by the same forces that produce earthquakes
- earth-mother — the earth conceived of as the female principle of fertility and the source of all life.
- earth-moving — Earth-moving equipment is machinery that is used for digging and moving large amounts of soil.
- 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.
- encroachment — Intrusion on a person's territory, rights, etc.
- erythematous — Of or pertaining to erythema.
- erythroderma — An inflammatory skin disease with erythema and scaling that affects nearly the entire cutaneous surface.
- etheromaniac — a person who is addicted to ether
- flamethrower — a weapon, either mounted or portable, that sprays ignited incendiary fuel for some distance.
- from scratch — to break, mar, or mark the surface of by rubbing, scraping, or tearing with something sharp or rough: to scratch one's hand on a nail.
- gametophores — Plural form of gametophore.
- geothermally — By geothermal means, especially by means of geothermal energy.
- gothic armor — white armor of the 15th century, marked especially by much fluting and ornamentation.
- gramophonist — a person who uses a gramophone
- grandmothers — Plural form of grandmother.
- haemoprotein — Alternative spelling of hemoprotein.
- hamartiology — the doctrine of sin in Christian theology
- hammer throw — a field event in which the hammer is thrown for distance.
- harbormaster — A harbormaster is the official in charge of a harbor.
- hard-mouthed — of or relating to a horse not sensitive to the pressure of a bit.
- harmoniumist — a person who plays a harmonium
- harmonometer — the equipment used for measuring the harmonic relations of sounds
- harvest home — the bringing home of the harvest.
- harvest moon — the moon at and about the period of fullness that is nearest to the autumnal equinox.
- headforemost — headfirst (def 1).
- hemarthrosis — (pathology) bleeding in the joints.
- hemichordate — belonging or pertaining to the chordates of the phylum Hemichordata, comprising small, widely distributed, marine animals, as the acorn worms.
- heterogamete — either of a pair of conjugating gametes differing in form, size, structure, or sex.
- heterogamety — the condition or state of being heterogametic
- heterogamous — Genetics. having unlike gametes, or reproducing by the union of such gametes (opposed to isogamous).
- hidrocystoma — An adenoma of the sweat glands.
- hierogrammat — a writer of hierograms.
- hoary marmot — a large marmot, Marmota caligata, living in mountainous areas of Siberia and northwestern North America and having a heavy, yellow-gray body, short black limbs, and black and white head and shoulders.
- home teacher — private tutor
- home theater — big-screen TV setup
- homeotherapy — therapy for a disease by means of an agent that is similar to but not identical with the causative agent of the disease.