12-letter words containing h, a, p, o
- handypersons — Plural form of handyperson.
- hanging post — a post from which a door, gate, etc., is hung.
- hanover park — a city in NE Illinois.
- happy couple — two people in a happy romantic relationship, especially two people who have just married
- haptoglobins — Plural form of haptoglobin.
- harmonograph — an instrument using a system of pendulums to produce geometric images
- harper woods — a city in SE Michigan, near Detroit.
- harpsichords — Plural form of harpsichord.
- have company — If you have company, you have a visitor or friend with you.
- have pity on — to have sympathy or show mercy for
- 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.
- helicographs — Plural form of helicograph.
- 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.
- heliotherapy — treatment of disease by means of sunlight.
- 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.
- hematocolpos — (medicine) A medical condition in which the vagina fills with menstrual blood, often caused by the combination of menstruation with an imperforate hymen.
- hematophobia — Fear of bleeding or the sight of blood.
- hemiplankton — plankton that spend part of their life cycle in a vegetative state on the sea bottom, riverbed, etc. (opposed to holoplankton).
- hemophiliacs — Plural form of hemophiliac.
- hepaticology — the scientific study of bryophyte plants known as hepatics or liverworts
- hepatization — the transformation of tissue into a liver-like substance, esp of the lungs in pneumonia
- hepatogenous — originating in the liver
- hepatomegaly — an abnormal enlargement of the liver, usually associated with liver disease or heart failure.
- hepatotoxins — Plural form of hepatotoxin.
- hepatoxicity — Toxicity that affects the liver.
- heptahedrons — Plural form of heptahedron.
- hernioplasty — an operation for the repair of a hernia.
- herpetofauna — the reptiles and amphibians that inhabit a given area
- heterography — spelling different from that in current use.
- heterophobia — Fear or resentment of what is different.
- heterophoria — a latent strabismus of one or both eyes.
- heteroplasia — the replacement of normal cells by abnormal cells, as in cancer.
- heteroplasty — the repair of lesions with tissue from another individual or species.
- heteropteran — A bug of the group Heteroptera.
- heterotopias — Plural form of heterotopia.
- hexadecapole — (physics) Anything having sixteen poles or electrodes, or a combination of four quadrupoles.
- hierographer — a writer of hierographs
- hierographic — of or relating to hierographs
- hierophanies — Plural form of hierophany.
- hierophantic — (in ancient Greece) an official expounder of rites of worship and sacrifice.
- hippocentaur — Centaur.
- hippocrepian — (of an aquatic organism or plant) shaped like a horseshoe
- hippophagist — a person who eats horseflesh.
- hippophagous — eating horse meat
- hippopotamic — like, of, or relating to a hippopotamus
- hippopotamus — a large herbivorous mammal, Hippopotamus amphibius, having a thick hairless body, short legs, and a large head and muzzle, found in and near the rivers, lakes, etc., of Africa, and able to remain under water for a considerable time.
- hire company — a company that hires things out to people
- hispaniolize — to make someone Spanish in their cultural attitudes, values, speech, etc