zone electrophoresis, n.

zone-electrophoresis
http://www.oed.com/dictionary/zone-electrophoresis_n%3Ftab%3Dmeaning_and_use
First published 1986; not fully revised

# zone electrophoresisnoun

## Factsheet

### What does the noun zone electrophoresis mean?

There is one meaning in OED's entry for the noun zone electrophoresis. See ‘Meaning & use’ for definition, usage, and quotation evidence.

#### Entry status

OED is undergoing a continuous programme of revision to modernize and improve definitions. This entry has not yet been fully revised.

### How common is the noun zone electrophoresis?

About 0.06occurrences per million words in modern written English

1950 | 0.058
1960 | 0.06
1970 | 0.062
1980 | 0.063
1990 | 0.067
2000 | 0.06
2010 | 0.06

### Where does the noun zone electrophoresis come from?

Earliest known use

1950s

The earliest known use of the noun zone electrophoresis is in the 1950s.

OED's earliest evidence for zone electrophoresis is from 1952, in Proceedings of Society for Experimental Biology & Medicine.

### Nearby entries

1. zonarious, adj. 1656–
2. zonary, adj. 1881–
3. zonate, adj. 1866–
4. zonated, adj. 1803–
5. zonation, n. 1898–
6. zone, n. a1500–
7. zone, v. 1792–
8. zone centre | zone center, n. 1934–
9. zoned, adj. 1662–
10. zone defence | zone defense, n. 1927–
11. zone electrophoresis, n.1952–
12. zone fossil, n. 1904–
13. zoneless, adj. 1748–
14. zonelet, n. 1855–
15. zone level, v. 1974–
16. zone leveller, n. 1956–
17. zone levelling, n. 1953–
18. zone-melt, v. 1982–
19. zone melting, n. 1952–
20. zone plate, n. 1890–
21. zoner, n. 1962–

## Meaning & use

1. 1952–
   Electrophoresis in which a solid but porous medium such as paper is used to ensure that the components remain separated in zones or bands according to their differing electrophoretic mobilities.
   1. 1952

      > Zone electrophoresis in a starch supporting medium.

      Proceedings of Society for Experimental Biology & Medicine vol. 80 42 (heading)
   2. 1964

      > The separation of some of the human plasma proteins by zone electrophoresis.

      G. H. Haggis et al., Introduction to Molecular Biology ii. 23 (caption)
   3. 1975

      > A common feature of the use of all supporting media is that the substances migrate as distinct zones which at the end of the analysis can be readily detected by suitable analytical techniques... The term zone electrophoresis has been applied to this method.

      Davis & Simpkins in Williams & Wilson, Biologist's Guide to Principles & Techniques of Practical Biochemistry iv. 100
   life sciences chemistry
   1. voltage clamp 1952–
      (The application of) a constant voltage maintained across a cell membrane by artificial means.
   2. zone electrophoresis 1952–
      Electrophoresis in which a solid but porous medium such as paper is used to ensure that the components remain separated in zones or bands according…
   3. voltage-clamping 1981–
   View in Historical Thesaurus
   1. zone electrophoresis 1952–
      Electrophoresis in which a solid but porous medium such as paper is used to ensure that the components remain separated in zones or bands according…
   View in Historical Thesaurus

## Frequency

zone electrophoresis typically occurs about 0.06 times per million words in modern written English.

zone electrophoresis is in frequency band 3, which contains words occurring between 0.01 and 0.1 times per million words in modern written English. More about OED's frequency bands

Frequency data is computed programmatically, and should be regarded as an estimate.

### Frequency of zone electrophoresis, n., 1950–2010

* Occurrences per million words in written English

Historical frequency series are derived from Google Books Ngrams (version 2), a data set based on the Google Books corpus of several million books printed in English between 1500 and 2010.

The overall frequency for a given word is calculated by summing frequencies for the main form of the word, any plural or inflected forms, and any major spelling variations.

For sets of homographs (distinct entries that share the same word-form, e.g. mole, n.¹, mole, n.², mole, n.³, etc.), we have estimated the frequency of each homograph entry as a fraction of the total Ngrams frequency for the word-form. This may result in inaccuracies.

Smoothing has been applied to series for lower-frequency words, using a moving-average algorithm. This reduces short-term fluctuations, which may be produced by variability in the content of the Google Books corpus.

Decade | Frequency per million words
--- | ---
1950 | 0.058
1960 | 0.06
1970 | 0.062
1980 | 0.063
1990 | 0.067
2000 | 0.06
2010 | 0.06

Originally published as part of the entry for zone, n.

zone, n. was first published in 1921; not fully revised.