What does the word index mean?


The forefinger, index finger. See Digitus.

[ Latin] That which points out or shows; a signpost; hence, the finger used in pointing, the forefinger( I. finger). I. movement, a variety of compulsory movement, produced by lesion of the corpora quadrigemina, in which the animal turns round like the hand of a clock.

[ Latin] A number which shows the relation existing between two magnitudes or sets of magnitudes; especially, a number indicative of the dimensions, proportions, or other physical properties of a substance. The indices of the head are: Breadthheight i., the height of the skull expressed as a percentage of the breadth: Facial i., the breadth of the face expressed as a percentage of its length; Gnathic( or Alveolar) i., the distance from the basion to the front of the jaw expressed as a percentage of the distance from the basion to the midpoint of the frontonasal suture; Lengthbreadth i. ( or Cephalic i.), the maximum breadth of the skull expressed as a percentage of the length; Lengthheight i., the height of the skull expressed as a percentage of the length; Nasal i., the width of the orifices for the anterior nares in the skull expressed as a percentage of their length; Orbital i., the height of the orbital orifice expressed as a percentage of its breadth. The indices of the limbs and trunk are: Humeroradial i., the length of the radius expressed as a percentage of the length of the humerus; Pelvic i., the ratio between the conjugate and transverse diameters of the pelvis; Sacral i., the breadth of the Sacrum expressed as a percentage of its length; Thoracâ€™ic i., the anteroposterior breadth of the thorax expressed as a percentage of its transverse breadth; Tibiofemoral i., the length of the tibia expressed as a percentage of the length of the femur.

Usage examples for index

I moved my chair back quickly, just missing another vigorous stab from his huge index finger. – War and the Weird by Forbes Phillips R. Thurston Hopkins

The laws are the great index of a people's civilization, chiefly as regards their execution. – Irish Race in the Past and the Present by Aug. J. Thebaud

The index of prices chosen is Dun's. – The Value of Money by Benjamin M. Anderson, Jr.
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