12-letter words containing a, h, i, e
- height gauge — an object used to measure the height of somebody or something, for example to measure the height of people for medical purposes
- heilongjiang — a province in NE China, S of the Amur River. 108,880 sq. mi. (281,999 sq. km). Capital: Harbin.
- heimskringla — a book of the 13th century narrating the history of the kings of Norway by Snorri Sturluson.
- helianthemum — (botany) Any of the genus Helianthemum of rockroses.
- helianthuses — Plural form of helianthus.
- helical gear — a cylindrical gear wheel whose teeth follow the pitch surface in a helical manner.
- helical rack — a rack having teeth set at an oblique angle to the edges. Compare rack1 (def 5).
- helical scan — denoting a recording technique used with video tapes in which the recorded tracks on the tape are segments of a helix
- 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.
- helium flash — the explosive burning of helium in the case of a star of low mass that occurs when the core is so dense that the matter has become degenerate. The burning causes a rapid rise in temperature until it is so high that the gas ceases to be degenerate, after which there is a rapid expansion
- hell-raising — behaviour which causes trouble
- hellaciously — In a hellacious manner.
- hellgramites — Plural form of hellgramite.
- hellgrammite — the aquatic larva of a dobsonfly, used as bait in fishing.
- helmsmanship — the skill or function of a helmsman
- helping hand — aid; assistance: to give the destitute a helping hand.
- hemangiomata — See under angioma.
- hemapheresis — apheresis.
- hemarthrosis — (pathology) bleeding in the joints.
- hematochezia — the passage of bloody stools.
- 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.
- hemihydrates — Plural form of hemihydrate.
- hemimetaboly — Hemimetabolism.
- hemiparasite — A plant that obtains or may obtain part of its food by parasitism, e.g., mistletoe, which also photosynthesizes.
- 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.
- hemodialyzer — artificial kidney.
- hemodynamics — the branch of physiology dealing with the forces involved in the circulation of the blood.
- hemophiliacs — Plural form of hemophiliac.
- hemorrhaging — a profuse discharge of blood, as from a ruptured blood vessel; bleeding.
- hemorrhoidal — Usually, hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid)
- hepadnavirus — Any member of the virus family Hepadnaviridae, capable of causing liver infections in humans and animals.
- 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
- hepatotoxins — Plural form of hepatotoxin.
- hepatoxicity — Toxicity that affects the liver.
- heraldically — of, relating to, or characteristic of heralds or heraldry: heraldic form; heraldic images; heraldic history; a heraldic device.
- herbicidally — from a herbicidal point of view
- hereditament — any inheritable estate or interest in property.