Definition of index

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Index (n.) That which guides, points out, informs, or directs; a pointer or a hand that directs to anything, as the hand of a watch, a movable finger on a gauge, scale, or other graduated instrument. In printing, a sign used to direct particular attention to a note or paragraph; -- called also fist..

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Manometer :: Manometer (n.) An instrument for measuring the tension or elastic force of gases, steam, etc., constructed usually on the principle of allowing the gas to exert its elastic force in raising a column of mercury in an open tube, or in compressing a portion of air or other gas in a closed tube with mercury or other liquid intervening, or in bending a metallic or other spring so as to set in motion an index; a pressure gauge. See Pressure, and Illust. of Air pump..
Ablution :: Ablution (n.) A small quantity of wine and water, which is used to wash the priest's thumb and index finger after the communion, and which then, as perhaps containing portions of the consecrated elements, is drunk by the priest..
Subscript :: Subscript (a.) Written below or underneath; as, iota subscript. (See under Iota.) Specifically (Math.), said of marks, figures, or letters (suffixes), written below and usually to the right of other letters to distinguish them; as, a, n, 2, in the symbols Xa, An, Y2. See Suffix, n., 2, and Subindex..
Table :: Table (n.) A view of the contents of a work; a statement of the principal topics discussed; an index; a syllabus; a synopsis; as, a table of contents..
Escutcheon :: Escutcheon (n.) A marking upon the back of a cow's udder and the space above it (the perineum), formed by the hair growing upward or outward instead of downward. It is esteemed an index of milking qualities..
Trapezoid :: Trapezoid (n.) A bone of the carpus at the base of the second metacarpal, or index finger..
Index :: Index (n.) That which guides, points out, informs, or directs; a pointer or a hand that directs to anything, as the hand of a watch, a movable finger on a gauge, scale, or other graduated instrument. In printing, a sign used to direct particular attention to a note or paragraph; -- called also fist..
Prognathous :: Prognathous (a.) Having the jaws projecting beyond the upper part of the face; -- opposed to orthognathous. See Gnathic index, under Gnathic..
Forefinger :: Forefinger (n.) The finger next to the thumb; the index.
Degree :: Degree (n.) State as indicated by sum of exponents; more particularly, the degree of a term is indicated by the sum of the exponents of its literal factors; thus, a2b3c is a term of the sixth degree. The degree of a power, or radical, is denoted by its index, that of an equation by the greatest sum of the exponents of the unknown quantities in any term; thus, ax4 + bx2 = c, and mx2y2 + nyx = p, are both equations of the fourth degree..
Regulator :: Regulator (n.) A contrivance for regulating and controlling motion, as: (a) The lever or index in a watch, which controls the effective length of the hairspring, and thus regulates the vibrations of the balance. (b) The governor of a steam engine. (c) A valve for controlling the admission of steam to the steam chest, in a locomotive..
Traverser :: Traverser (n.) One who, or that which, traverses, or moves, as an index on a scale, and the like..
Index :: Index (n.) The figure or letter which shows the power or root of a quantity; the exponent.
Indexically :: Indexically (adv.) In the manner of an index.
Index :: Index (n.) The second digit, that next pollex, in the manus, or hand; the forefinger; index finger..
Indexed :: Indexed (imp. & p. p.) of Inde.
Index :: Index (n.) A table for facilitating reference to topics, names, and the like, in a book; -- usually alphabetical in arrangement, and printed at the end of the volume..
Index :: Index (n.) That which points out; that which shows, indicates, manifests, or discloses..
Fist :: Fist (n.) the index mark [/], used to direct special attention to the passage which follows..
Inverse :: Inverse (a.) Opposite in nature and effect; -- said with reference to any two operations, which, when both are performed in succession upon any quantity, reproduce that quantity; as, multiplication is the inverse operation to division. The symbol of an inverse operation is the symbol of the direct operation with -1 as an index. Thus sin-1 x means the arc whose sine is x..
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