index : Idioms & Phrases

Index

Absolute refractive index

  • (Opt.), the index of refraction of a substances when the ray passes into it from a vacuum.
Webster 1913

body mass index

  • noun a measure of someone's weight in relation to height; to calculate one's BMI, multiply one's weight in pounds and divide that by the square of one's height in inches; overweight is a BMI greater than 25; obese is a BMI greater than 30
    BMI.
WordNet

breadth index

  • noun ratio (in percent) of the maximum breadth to the maximum length of a skull
    breadth index; cephalic index.
WordNet

business index

  • noun a statistical compilation that provides a context for economic or financial conditions
    • this business index is computed relative to the base year of 2005
WordNet

card index

  • noun an alphabetical listing of items (e.g., books in a library) with a separate card for each item
    card catalogue; card catalog.
WordNet

Cephalic index

  • noun ratio (in percent) of the maximum breadth to the maximum length of a skull
    breadth index; cephalic index.
WordNet
  • (Anat.), the ratio of the breadth of the cranium to the length, which is taken as the standard, and equal to 100; the breadth index.
Webster 1913

combined dna index system

  • noun the DNA file maintained by the Federal Bureau of Investigation
WordNet

consumer price index

  • noun an index of the cost of all goods and services to a typical consumer
    CPI; consumer price index.
WordNet

cost-of-living index

  • noun an index of the cost of all goods and services to a typical consumer
    CPI; consumer price index.
WordNet

cranial index

  • noun ratio (in percent) of the maximum breadth to the maximum length of a skull
    breadth index; cephalic index.
WordNet

cross-index

  • noun a reference at one place in a work to information at another place in the same work
    cross-reference.
  • verb make an index that refers from one point to the next
    • These references are cross-indexed
WordNet

facial index

  • noun the ratio (in percent) of the maximum width to the maximum height of the face
WordNet

Gnathic index

  • in a skull, the ratio of the distance from the middle of the nasofrontal suture to the basion (taken equal to 100), to the distance from the basion to the middle of the front edge of the upper jaw; called also alveolar index.
Webster 1913

index case

  • noun the earliest documented case of a disease that is included in an epidemiological study
WordNet

Index error

  • the error in the reading of a mathematical instrument arising from the zero of the index not being in complete adjustment with that of the limb, or with its theoretically perfect position in the instrument; a correction to be applied to the instrument readings equal to the error of the zero adjustment.
Webster 1913

Index expurgatorius

  • . L. See Index prohibitorius (below).
Webster 1913

Index finger

  • noun the finger next to the thumb
    index; forefinger.
WordNet
  • . See Index, 5.
Webster 1913

index fossil

  • noun a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found
    guide fossil.
WordNet

index fund

  • noun a mutual fund whose assets are stocks on a given list
  • noun a mutual fund that invests in the stocks that are the basis of a well-known stock or bond index
WordNet

Index glass

  • the mirror on the index of a quadrant, sextant, etc.
Webster 1913

Index hand

  • the pointer or hand of a clock, watch, or other registering machine; a hand that points to something.
Webster 1913

index number

  • noun a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
    index; indicator; indicant.
WordNet

Index of a logarithm

  • (Math.), the integral part of the logarithm, and always one less than the number of integral figures in the given number. It is also called the characteristic.
Webster 1913

index of refraction

  • noun the ratio of the velocity of light in a vacuum to that in a medium
    index of refraction.
WordNet

Index of refraction, ∨ Refractive index

  • (Opt.), the number which expresses the ratio of the sine of the angle of incidence to the sine of the angle of refraction. Thus the index of refraction for sulphur is 2, because, when light passes out of air into sulphur, the sine of the angle of incidence is double the sine of the angle of refraction.
Webster 1913

Index plate

  • a graduated circular plate, or one with circular rows of holes differently spaced; used in machines for graduating circles, cutting gear teeth, etc.
Webster 1913

Index prohibitorius L., or Prohibitory index

  • (R. C. Ch.), a catalogue of books which are forbidden by the church to be read; the index expurgatorius L., or expurgatory index, is a catalogue of books from which passages marked as against faith or morals must be removed before Catholics can read them. These catalogues are published with additions, from time to time, by the Congregation of the Index, composed of cardinals, theologians, etc., under the sanction of the pope. Hook.
Webster 1913

index register

  • noun (computer science) a register used to determine the address of an operand
WordNet

Index rerum

  • L., a tabulated and alphabetized notebook, for systematic preservation of items, quotations, etc.
Webster 1913

Nasal index

  • (Anat.), in the skull, the ratio of the transverse the base of the aperture to the nasion, which latter distance is taken as the standard, equal to 100.
Webster 1913

Orbital index

  • (Anat.), in the skull, the ratio of the vertical height to the transverse width of the orbit, which is taken as the standard, equal to 100.
Webster 1913

price index

  • noun an index that traces the relative changes in the price of an individual good (or a market basket of goods) over time
    price level.
WordNet

producer price index

  • noun an index of changes in wholesale prices
    producer price index.
WordNet

Prohibitory index

  • . (R. C. Ch.) See under Index.
Webster 1913

Refractive index

  • noun the ratio of the velocity of light in a vacuum to that in a medium
    index of refraction.
WordNet
  • . (Opt.) See Index of refraction, under Index.
Webster 1913

Relative refractive index

  • (of two media) (Opt.), the ratio of the sine of the angle of incidence to the sine of the angle of refraction for a ray passing out of one of the media into the other.
Webster 1913

retail price index

  • noun an index of changes in retail prices
WordNet

standard and poor's index

  • noun a broadly based stock market index
    Standard and Poor's.
WordNet

stock index

  • noun index based on a statistical compilation of the share prices of a number of representative stocks
    stock index.
WordNet

stock market index

  • noun index based on a statistical compilation of the share prices of a number of representative stocks
    stock index.
WordNet

stock-index futures

  • noun a futures contract based on a stock index; a bet on the future price of the indexed group of stocks
WordNet

thumb index

  • noun one of a series of rounded notches in the fore edge of a book to indicate sections
WordNet

wholesale price index

  • noun an index of changes in wholesale prices
    producer price index.
WordNet