12-letter words containing h, o, a
- have company — If you have company, you have a visitor or friend with you.
- have got sth — You use have got to say that someone has a particular thing, or to mention a quality or characteristic that someone or something has. In informal American English, people sometimes just use 'got'.
- have it good — to be in comfortable circumstances
- have need to — to be compelled or required to; must
- have none of — If you say that someone will have none of something, or is having none of something, you mean that they refuse to accept it.
- have pity on — to have sympathy or show mercy for
- hazel grouse — a European woodland grouse, Tetrastes bonasia, somewhat resembling the North American ruffed grouse.
- hazelnut oil — an oil extracted from hazelnuts and used mostly in cooking
- head for sth — If you a have a head for something, you can deal with it easily. For example, if you have a head for figures, you can do arithmetic easily, and if you have a head for heights, you can climb to a great height without feeling afraid.
- head station — the main buildings on a large sheep or cattle farm
- head-to-head — in direct confrontation, opposition, or competition: a head-to-head battle between the two companies.
- headforemost — headfirst (def 1).
- headlongness — Headlong quality or speed; precipitateness.
- headstrongly — In a headstrong manner.
- hearing loss — diminished ability to hear
- heart of oak — a brave person
- hearthstones — Plural form of hearthstone.
- heartstopper — something so frightening or emotionally gripping as to make one's heart seem to stop beating: We didn't crash, but it was a heartstopper.
- heaven knows — You can say 'Heaven knows' to emphasize that you do not know something, or that you find something very surprising.
- heavy bomber — a large plane capable of carrying heavy bomb loads for long distances, especially at high altitudes.
- heavy oxygen — either of the two stable isotopes of oxygen having mass numbers of 17 and 18.
- heavy-footed — clumsy or ponderous, as in movement or expressiveness: music that is heavy-footed and uninspired.
- hebdomadally — taking place, coming together, or published once every seven days; weekly: hebdomadal meetings; hebdomadal groups; hebdomadal journals.
- heel-and-toe — noting a pace, as in walking contests, in which the heel of the front foot touches ground before the toes of the rear one leave it.
- heilongjiang — a province in NE China, S of the Amur River. 108,880 sq. mi. (281,999 sq. km). Capital: Harbin.
- helicobacter — Any member of the Helicobacter bacteria.
- helicographs — Plural form of helicograph.
- heliogabalus — (Varius Avitus Bassianus"Marcus Aurelius Antoninus") a.d. 204–222, Roman emperor 218–222.
- heliographed — Simple past tense and past participle of heliograph.
- heliographer — (obsolete) Photographer.
- heliographic — a device for signaling by means of a movable mirror that reflects beams of light, especially sunlight, to a distance.
- heliogravure — photoengraving.
- heliotherapy — treatment of disease by means of sunlight.
- hellaciously — In a hellacious manner.
- hello packet — (networking, communications) An OSPF packet sent periodically on each network interface, real or virtual, to discover and test connections to neighbours. Hello packets are multicast on physical networks capable of multicasting or broadcasting to enable dynamic router discovery. They include the parameters that routers connected to a common network must agree on. Hello packets increase network resilience by, e.g., allowing a router to establish a secondary connection when a primary connection fails.
- hells canyon — a canyon on the Snake River in S Idaho and along the Oregon border: 125 miles (210 km) long with a maximum depth of about 7900 feet (2408 meters).
- hemangiomata — See under angioma.
- hemarthrosis — (pathology) bleeding in the joints.
- hematoblasts — Plural form of hematoblast.
- hematochezia — the passage of bloody stools.
- hematocolpos — (medicine) A medical condition in which the vagina fills with menstrual blood, often caused by the combination of menstruation with an imperforate hymen.
- hematogenous — originating in the blood.
- hematologist — the study of the nature, function, and diseases of the blood and of blood-forming organs.
- hematophobia — Fear of bleeding or the sight of blood.
- hemerocallis — the genus comprising the day lilies.
- hemichordate — belonging or pertaining to the chordates of the phylum Hemichordata, comprising small, widely distributed, marine animals, as the acorn worms.
- hemimetaboly — Hemimetabolism.
- hemiplankton — plankton that spend part of their life cycle in a vegetative state on the sea bottom, riverbed, etc. (opposed to holoplankton).
- hemodialyses — Plural form of hemodialysis.
- hemodialysis — dialysis of the blood, especially with an artificial kidney, for the removal of waste products.