zygogenesis, n.

zygogenesis
http://www.oed.com/dictionary/zygogenesis_n%3Ftab%3Dmeaning_and_use
First published 1986; not fully revised

# zygogenesisnoun

## Factsheet

### What does the noun zygogenesis mean?

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

Fewer than 0.01occurrences per million words in modern written English

1950 | 0.0004
1960 | 0.0004
1970 | 0.0004
1980 | 0.0003
1990 | 0.0004
2000 | 0.0003
2010 | 0.0002

### How is the noun zygogenesis pronounced?

#### British English

/ˌzʌɪɡə(ʊ)ˈdʒɛnᵻsɪs/
zigh-goh-JEN-uh-siss
/ˌzɪɡə(ʊ)ˈdʒɛnᵻsɪs/
zig-oh-JEN-uh-siss

#### U.S. English

/ˌzaɪɡəˈdʒɛnəsəs/
zigh-guh-JEN-uh-suhss
/ˌzɪɡəˈdʒɛnəsəs/
zig-uh-JEN-uh-suhss

### Where does the noun zygogenesis come from?

Earliest known use

1950s

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

OED's earliest evidence for zygogenesis is from 1950, in Adv. Genetics.

### Nearby entries

1. zygnemid, n. 1887–
2. zygnomic, adj. 1926–
3. zygo-, comb. form
4. zygobranchiate, adj. 1883–
5. zygocactus, n. 1950–
6. zygocardiac, adj. 1877–
7. zygodactyl, adj. & n. 1831–
8. zygodactylic, adj. 1835–
9. zygodactylous, adj. 1828–
10. zygodont, adj. 1888–
11. zygogenesis, n.1950–
12. zygology, n. 1970–
13. zygoma, n. 1684–
14. zygomatic, adj. & n. 1712–
15. zygomatico-, comb. form
16. zygomato-, comb. form
17. zygomere, n. 1966–
18. zygomorphic, adj. 1875–
19. zygomorphism, n. 1875–
20. zygomorphous, adj. 1879–
21. Zygomycetes, n. 1887–

## Etymology

‑genesis comb. form.

## Meaning & use

1. 1950–
   Reproduction involving the formation of a zygote.
   1. 1950

      > The most common mode of animal reproduction is, however, sexual reproduction or gamogony or zygogenesis.

      Adv. Genetics vol. 3 194
   2. 1973

      > It [sc. random genetic drift] includes all events that lead to sampling error in random zygogenesis.

      B. J. Williams, Evolution & Human Origins iii. 37/2
   physiology
   1. zygosis 1880–
      = conjugation, n. 5.
   2. heterozygosis 1905–
      The fusion of two genetically different gametes; the state or condition of being heterozygous.
   3. homozygosis 1905–
      The fusion of two genetically identical gametes; the state or condition of being homozygous.
   4. zygogenesis 1950–
      Reproduction involving the formation of a zygote.
   View in Historical Thesaurus

## Pronunciation

### British English

/ˌzʌɪɡə(ʊ)ˈdʒɛnᵻsɪs/
zigh-goh-JEN-uh-siss
/ˌzɪɡə(ʊ)ˈdʒɛnᵻsɪs/
zig-oh-JEN-uh-siss

### U.S. English

/ˌzaɪɡəˈdʒɛnəsəs/
zigh-guh-JEN-uh-suhss
/ˌzɪɡəˈdʒɛnəsəs/
zig-uh-JEN-uh-suhss
/ˌzaɪɡoʊˈdʒɛnəsəs/
zigh-goh-JEN-uh-suhss
/ˌzɪɡoʊˈdʒɛnəsəs/
zig-oh-JEN-uh-suhss

####

##### 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.

####

##### Consonants

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

* /d/ also represents a 'tapped' /t/ as in

Some consonants can take the function of the vowel in unstressed syllables. Where necessary, a syllabic marker diacritic is used, hence /ˈpɛd(ə)l/ but /ˈpɛdl̩i/.

##### Vowels

- ifleece, happy
- ɪkit
- ɛdress
- ætrap, bath
- ɑlot, palm, cloth, thought
- ɑrstart
- ɔcloth, thought
- ɔrnorth, force
- ʊfoot
- ugoose
- əstrut, comma
- ərnurse, letter
- ɪ(ə)rnear
- ɛ(ə)rsquare
- ʊ(ə)rcure
- eɪface
- aɪpride
- aʊmouth
- oʊgoat
- ɔɪvoice
- ɑ̃gratin
- æ̃salon
- 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.

####

Simple text respell breaks words into syllables, separated by a hyphen. The syllable which carries the primary stress is written in capital letters. This key covers both British and U.S. English Simple Text Respell.

##### Consonants

b, d, f, h, k, l, m, n, p, r, s, t, v, w and z have their standard English values

- gguy
- jjay
- yyore
- chchore
- khloch
- shshore
- ththaw
- dhthee
- zhbeige

##### Vowels

- atrap
- ahpalm
- airsquare
- arstart
- arrcarry (British only)
- awthought
- ayface
- a(ng)gratin
- edress
- eefleece
- eerdeer
- errmerry
- ikit
- ighpride
- irrmirror
- olot (British only)
- ohgoat
- oogoose
- oorcure
- orforce
- orrsorry (British only)
- owmouth
- oyvoice
- o(ng)salon
- ustrut
- uhletter
- urnurse
- urrhurry
- uufoot

## Frequency

zygogenesis typically occurs fewer than 0.01 times per million words in modern written English.

zygogenesis is in frequency band 1, which contains words occurring fewer than 0.001 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 zygogenesis, 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 | 0.0004
1960 | 0.0004
1970 | 0.0004
1980 | 0.0003
1990 | 0.0004
2000 | 0.0003
2010 | 0.0002

Originally published as part of the entry for zygo-, comb. form

zygo-, comb. form was first published in 1921; not fully revised.