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hypochondria a pathological preoccupation with the likelihood of becoming ill or with imagined pains or diseases.
hypochondriac of or relating to the condition of hypochondria. [3 definitions]
hypochondriasis in medicine or psychiatry, the preferred term for hypochondria.
hypochondrium either of the upper areas of the abdomen on the sides, near the lower ribs.
hypocotyl the stem that is below the primary leaf of a seedling plant.
hypocrisy the practice or an instance of stating or pretending to hold beliefs or principles that one does not actually live by; insincerity.
hypocrite one who states or pretends to hold beliefs or principles he or she does not actually practice.
hypocritical marked by, tending toward, or engaged in hypocrisy.
hypodermic characterized by injection or introduction under the skin; subcutaneous. [4 definitions]
hypodermic injection the injection of a substance, usu. a medicine or drug, into a vein, muscle, or tissue beneath the skin.
hypodermic syringe a piston syringe fitted to a hollow needle, used to inject a substance under the skin.
hypodermis in plants, a layer of cells directly beneath the epidermis. [2 definitions]
hypoglycemia abnormally low blood glucose concentration.
hypogynous of petals, sepals, and stamens, attached to the receptacle below the pistil, as in a tulip. (Cf. epigynous, perigynous.)
hypolimnion the layer of the water of a lake, below the thermocline, that is coldest and contains the least oxygen. (Cf. epilimnion.)
hypophosphate a salt or neutral ester of hypophosphoric acid.
hypophosphite a salt of hypophosphorous acid.
hypophosphoric acid an acid that results from exposing phosphorous to moist air.
hypophosphorous acid a strong crystalline acid, colorless or slightly yellow, used as a reducing agent.
hypophysis see pituitary gland.
hypoplasia the state or condition of being underdeveloped or undersized, as in a bodily structure or organ.