zygopleura, n.

zygopleura
http://www.oed.com/dictionary/zygopleura_n%3Ftab%3Dmeaning_and_use
First published 1921; not fully revised

# zygopleuranoun

## Earlier version

- zygopleura, n. pl. in OED Second Edition (1989)

## Factsheet

### What does the noun zygopleura mean?

There is one meaning in OED's entry for the noun zygopleura. 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 is the noun zygopleura pronounced?

#### British English

/zʌɪɡəʊˈplʊərə/
/zɪɡəʊˈplʊərə/

### Where does the noun zygopleura come from?

Earliest known use

1880s

The earliest known use of the noun zygopleura is in the 1880s.

OED's only evidence for zygopleura is from 1883, in the writing of Patrick Geddes, social evolutionist and city planner.

zygopleura is a borrowing from Latin.

### Nearby entries

1. zygomorphous, adj. 1879–
2. Zygomycetes, n. 1887–
3. zygomycetous, adj. 1928–
4. zygon, n. 1886–
5. zygonema, n. 1911–
6. zygoneurous, adj. 1901–
7. zygophiuran, adj. & n. 1892–
8. zygophore, n. 1904–
9. zygophyllaceous, adj. 1887–
10. zygophyte, n. 1885–
11. zygopleura, n.1883–
12. zygopterid, n. & adj. 1900–
13. zygosis, n. 1880–
14. zygosity, n. 1952–
15. zygosome, n. 1905–
16. zygosperm, n. 1880–
17. zygosphenal, adj. 1854–
18. zygosphene, n. 1854–
19. zygosphere, n. 1880–
20. zygospondyline, adj. 1892–
21. zygospore, n. 1864–

## Etymology

### Summary

A borrowing from Latin.
modern Latin, < Greek ζυγόν yoke + πλευρά side.

## Meaning & use

Biology.

1. 1883–
   With plural agreement. Organic forms having bilateral symmetry, with either two or four antimeres or corresponding opposite parts (dipleura n., tetrapleura n. at tetrapleuron n. 2).
   1. 1883

      > The Zygopleura include forms bilaterally symmetrical in the strictest sense, in which not more than two radial planes, and these at right angles to each other, are present. Haeckel again divides these, according to the number of antimeres, into Tetrapleura and Dipleura.

      P. Geddes in Encyclopædia Britannica vol. XVI. 844/2
   life sciences
   1. subequality 1836–
      The condition of being subequal; approximate equality.
   2. tetrapleuron 1883–
      Biology. Plural tetraˈpleura n. Organic forms with bilateral symmetry having four antimeres or corresponding opposite parts. Cf. dipleura, n.
   3. zygopleura 1883–
      With plural agreement. Organic forms having bilateral symmetry, with either two or four antimeres or corresponding opposite parts (dipleura, n., t…
   4. tetrasymmetry 1889–
      Symmetry characterized by division into four similar parts.
   View in Historical Thesaurus

## Pronunciation

### British English

/zʌɪɡəʊˈplʊərə/
/zɪɡəʊˈplʊərə/

####

##### Consonants

- ppea
- ttea
- kkey
- bbuy
- ddye
- ɡguy
- tʃchore
- dʒjay
- ffore
- θthaw
- ssore
- ʃshore
- vvee
- ðthee
- zzee
- ʒbeige
- xloch
- hhay
- llay
- ɬrhingyll
- rray
- wway
- jyore
- mmay
- nnay
- ŋsing

Some consonants can take the function of the vowel in unstressed syllables. Where necessary, a syllabic marker diacritic is used, hence /ˈpɛtl/ but /ˈpɛtl̩i/.

##### Vowels

- iːfleece
- ihappy
- ɪkit
- ɛdress
- atrap, bath
- ɑːstart, palm, bath
- ɒlot
- ɔːthought, force
- ʌstrut
- ʊfoot
- uːgoose
- əletter
- əːnurse
- ɪənear
- ɛːsquare
- ʊəcure
- eɪface
- ʌɪpride
- aʊmouth
- əʊgoat
- ɔɪvoice
- ãgratin
- ɒ̃salon
- ᵻ(/ɪ/-/ə/)
- ᵿ(/ʊ/-/ə/)

##### Other symbols

- The symbol ˈ at the beginning of a syllable indicates that that syllable is pronounced with primary stress.
- The symbol ˌ at the beginning of a syllable indicates that that syllable is pronounced with secondary stress.
- Round brackets ( ) in a transcription indicate that the symbol within the brackets is optional.

View the pronunciation model here.

## Compounds & derived words

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1. zygopleural, adj. 1883–
   Having bilateral symmetry.

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

zygopleura, n. was last modified in December 2024.