semi-logarithmicadj.

Forms: Also semilogarithmic.

Etymology: semi- prefix 2c.Previous versions of the OED give the stress as: ˌsemi-logaˈrithmic.

Having or being a scale that is linear in one direction and logarithmic in the other. Cf. semi-log adj.

ΚΠ

1919 A. C. Haskell How to make & use Graphic Charts iv. 20 The semi-logarithmic chart has a wide use for the plotting of comparative statistics of similar kind but dissimilar magnitude.

1930 R. Pearl Introd. Med. Biometry & Statistics (ed. 2) vi. 183 The scale of the ordinates is divided not in arithmetic progression but in proportion to the logarithms of numbers in arithmetic progression. Such a ruling is called an arithlog or semi-logarithmic grid.

1977 J. L. Harper Population Biol. Plants xv. 458 Some of these are redrawn in Fig. 15/1 on a semi~logarithmic scale to show the change in range of dispersal if the seed crop is halved.

Derivatives

ˌsemi-logaˈrithmically adv.

ΚΠ

1919 A. C. Haskell How to make & use Graphic Charts iv. 18 This is shown very clearly by charting the same data on both arithmetically and semi-logarithmically ruled paper.

1976 Nature 11 Mar. 153/2 Figure 1 is an action spectrum obtained by plotting semi~logarithmically the reciprocal of retinal irradiance (1/W cm^—2) against wavelength (nm) for each exposure duration.

This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2020).

单词	semi-logarithmic
释义	semi-logarithmicadj. Forms: Also semilogarithmic. Etymology: semi- prefix 2c.Previous versions of the OED give the stress as: ˌsemi-logaˈrithmic. Having or being a scale that is linear in one direction and logarithmic in the other. Cf. semi-log adj. ΚΠ 1919 A. C. Haskell How to make & use Graphic Charts iv. 20 The semi-logarithmic chart has a wide use for the plotting of comparative statistics of similar kind but dissimilar magnitude. 1930 R. Pearl Introd. Med. Biometry & Statistics (ed. 2) vi. 183 The scale of the ordinates is divided not in arithmetic progression but in proportion to the logarithms of numbers in arithmetic progression. Such a ruling is called an arithlog or semi-logarithmic grid. 1977 J. L. Harper Population Biol. Plants xv. 458 Some of these are redrawn in Fig. 15/1 on a semi~logarithmic scale to show the change in range of dispersal if the seed crop is halved. Derivatives ˌsemi-logaˈrithmically adv. ΚΠ 1919 A. C. Haskell How to make & use Graphic Charts iv. 18 This is shown very clearly by charting the same data on both arithmetically and semi-logarithmically ruled paper. 1976 Nature 11 Mar. 153/2 Figure 1 is an action spectrum obtained by plotting semi~logarithmically the reciprocal of retinal irradiance (1/W cm^—2) against wavelength (nm) for each exposure duration. This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2020). < adj.1919
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