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hemeralopia a defect of the eyes in which sight is normal in a dim light, but extremely poor in a bright light; day blindness.
hemi- half.
hemidemisemiquaver in music, a sixty-fourth note.
hemihedral of a crystal, having only half the faces necessary for complete symmetry.
hemihydrate a hydrate that has twice as many molecules of the anhydrous compound as of water.
hemimetabolous not going through a complete metamorphosis, as certain insects that do not go through a pupal stage.
hemiparasite a parasite that obtains some of its sustenance, or sustains itself some of the time, on its own.
hemiplegia paralysis of just one side of the body.
hemipteran of or belonging to a family of insects that have sucking mouth parts and forewings that are leathery near the base.
hemisphere either of two halves of the terrestrial globe, formed by dividing it into northern and southern parts at the equator, or into eastern and western parts at the prime meridian. [3 definitions]
hemispheric of or relating to a hemisphere. [2 definitions]
hemistich half or nearly half of a line of verse or poetry, esp. when a caesura divides the line. [2 definitions]
hemitrope a compound crystal composed of two or more parts or crystals facing each other.
hemline the hem or bottom edge of a garment. [2 definitions]
hemlock any of various evergreens of North America that have short needles and bear small cones, or the wood of this tree. [3 definitions]
hemo- blood.
hemochromatosis an iron metabolism disorder, characterized by brownish skin pigmentation, enlargement of the liver, and diabetes.
hemocyanin a bluish blood pigment that bears oxygen and contains copper, found in certain invertebrates.
hemocytometer an instrument used to determine the concentration of cells in body fluids, esp. red and white cells in blood; hemacytometer.
hemodialysis dialysis of the blood to remove waste products normally removed by the kidneys.
hemodynamic pertaining to the flow of blood in the circulatory system.