[{"Bold_text": "adjective", "List Items": ["conforming to the standard or the common type; usual; not abnormal; regular ; natural .", "serving to establish a standard.", "Psychology.approximately average in any psychological trait, as intelligence, personality, or emotional adjustment.free from any mental disorder; sane.", "approximately average in any psychological trait, as intelligence, personality, or emotional adjustment.", "free from any mental disorder; sane.", "Biology, Medicine/Medical.free from any infection or other form of disease or malformation, or from experimental therapy or manipulation.of natural occurrence.", "free from any infection or other form of disease or malformation, or from experimental therapy or manipulation.", "of natural occurrence.", "Mathematics.being at right angles, as a line; perpendicular.of the nature of or relating to a mathematical normal.(of an orthogonal system of real functions) defined so that the integral of the square of the absolute value of any function is 1.(of a topological space) having the property that corresponding to every pair of disjoint closed sets are two disjoint open sets, each containing one of the closed sets.(of a set) having the property that the same set results when all the elements of the set are operated on consistently on the left and consistently on the right by any element of the set; invariant .", "being at right angles, as a line; perpendicular.", "of the nature of or relating to a mathematical normal.", "(of an orthogonal system of real functions) defined so that the integral of the square of the absolute value of any function is 1.", "(of a topological space) having the property that corresponding to every pair of disjoint closed sets are two disjoint open sets, each containing one of the closed sets.", "(of a set) having the property that the same set results when all the elements of the set are operated on consistently on the left and consistently on the right by any element of the set; invariant .", "Chemistry.(of a solution) containing one equivalent weight of the constituent in question in one liter of solution.relating to an aliphatic hydrocarbon having a straight unbranched carbon chain, each carbon atom of which is joined to no more than two other carbon atoms.of or relating to a neutral salt in which any replaceable hydroxyl groups or hydrogen atoms have been replaced by other groups or atoms, as sodium sulfate, Na2SO4.", "(of a solution) containing one equivalent weight of the constituent in question in one liter of solution.", "relating to an aliphatic hydrocarbon having a straight unbranched carbon chain, each carbon atom of which is joined to no more than two other carbon atoms.", "of or relating to a neutral salt in which any replaceable hydroxyl groups or hydrogen atoms have been replaced by other groups or atoms, as sodium sulfate, Na2SO4."]}, {"Bold_text": "noun", "List Items": ["the standard or the common type.", "the usual state, amount, level, etc., especially the average or mean:Production may fall below normal.", "Mathematics.a perpendicular line or plane, especially one perpendicular to a tangent line of a curve, or a tangent plane of a surface, at the point of contact.the portion of this perpendicular line included between its point of contact with the curve and thex-axis.", "a perpendicular line or plane, especially one perpendicular to a tangent line of a curve, or a tangent plane of a surface, at the point of contact.", "the portion of this perpendicular line included between its point of contact with the curve and thex-axis."]}, {"Bold_text": "noun", "List Items": ["a city in central Illinois."]}]