12-letter words containing m, y, r
- granny woman — midwife (def 1).
- grape family — the plant family Vitaceae, characterized by woody climbing vines with tendrils, having alternate, simple or compound leaves, and bearing clusters of small flowers and berries, and including Boston ivy, grape, grape ivy, and Virginia creeper.
- grass family — the large plant family Gramineae (or Poaceae), characterized by mostly herbaceous but sometimes woody plants with hollow and jointed stems, narrow sheathing leaves, petalless flowers borne in spikelets, and fruit in the form of seedlike grain, and including bamboo, sugar cane, numerous grasses, and cereal grains such as barley, corn, oats, rice, rye, and wheat.
- green monkey — a W African variety of a common guenon monkey, Cercopithecus aethiops, having greenish-brown fur and a dark face
- gymnocarpous — (of a fungus or lichen) having the apothecium open and attached to the surface of the thallus.
- gypsum board — wallboard composed primarily of gypsum and often used as sheathing.
- gyromagnetic — of or relating to the magnetic properties of a rotating charged particle.
- hamartiology — the doctrine of sin in Christian theology
- happy camper — Slang. a person who is cheerful and satisfied: There were no happy campers after the company was reorganized.
- harmonically — pertaining to harmony, as distinguished from melody and rhythm.
- harmoniously — marked by agreement in feeling, attitude, or action: a harmonious group.
- headmasterly — In a manner befitting a headmaster.
- heavy bomber — a large plane capable of carrying heavy bomb loads for long distances, especially at high altitudes.
- helichrysums — Plural form of helichrysum.
- hemihydrates — Plural form of hemihydrate.
- hemodialyzer — artificial kidney.
- hemorheology — The science of the rheological (especially flow) properties of the blood.
- hermetically — so as to be airtight: hermetically sealed.
- heterogamety — the condition or state of being heterogametic
- heteromorphy — (biology) The state or quality of being heteromorphic; heteromorphism.
- heteronymous — of, relating to, or characteristic of a heteronym.
- heterothermy — The possession of characteristics of both poikilothermy and homeothermy.
- hidrocystoma — An adenoma of the sweat glands.
- high polymer — a polymer composed of a large number of monomers.
- hire company — a company that hires things out to people
- 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.
- hobby farmer — a person who runs a farm as a hobby rather than a means of making a living
- holidaymaker — vacationer.
- 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.
- home country — the country a person comes from
- homeotherapy — therapy for a disease by means of an agent that is similar to but not identical with the causative agent of the disease.
- hominy grits — grits (def 1).
- homoiothermy — having a body temperature that is relatively constant and mostly independent of the temperature of the environment; warm-blooded (opposed to poikilothermic).
- honeymooners — Plural form of honeymooner.
- honor system — a system whereby the students at a school, the inmates in a prison, etc., are put on their honor to observe certain rules in order to minimize administrative supervision or to promote honesty.
- humourlessly — Alternative spelling of humorlessly.
- hydatidiform — like or resembling a hydatid
- hydrargyrism — mercurialism.
- hydrobromate — (chemistry) hydrobromide.
- hydrobromide — a salt formed by the direct union of hydrobromic acid and an organic base, especially an alkaloid, usually more soluble than the base.
- hydrodynamic — pertaining to forces in or motions of liquids.
- hydroforming — the production of high-octane aromatic compounds for motor fuels by catalytic reforming of naphthas in the presence of hydrogen.
- hydromedusae — Irregular plural form of hydromedusa.
- hydrometeors — Plural form of hydrometeor.
- hydromorphic — of or relating to soil having characteristics that are developed when there is excess water all or part of the time.
- hydrothermal — noting or pertaining to the action of hot, aqueous solutions or gases within or on the surface of the earth.
- hydrotropism — oriented growth in response to water.
- hygrothermal — (physics) Of or pertaining to both humidity and temperature.
- hylomorphism — the theory that every physical object is composed of two principles, an unchanging prime matter and a form deprived of actuality with every substantial change of the object.
- hymenopteran — hymenopterous.