zygotoblastnoun
Factsheet
What does the noun zygotoblast mean?
There is one meaning in OED's entry for the noun zygotoblast. 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 zygotoblast?
| 1900 | 0.0016 |
| 1910 | 0.0014 |
| 1920 | 0.0011 |
| 1930 | 0.0009 |
| 1940 | 0.0002 |
| 1950 | 0.0001 |
| 1960 | 0.00004 |
| 1970 | 0.00004 |
| 1980 | 0 |
| 1990 | 0 |
| 2000 | 0 |
| 2010 | 0 |
Where does the noun zygotoblast come from?
Earliest known use
1890s
The earliest known use of the noun zygotoblast is in the 1890s.
Nearby entries
- zygospore, n.1864–
- zygosporic, adj.1906–
- zygostat, n.1623
- zygostatical, adj.1656
- zygostyle, n.1881–
- zygote, n.1891–
- zygotene, n.1911–
- zygotic, adj.1909–
- -zygotic, comb. form
- zygotically, adv.1915–
- zygotoblast, n.1899–
- zygotoid, n.1891–
- zygotomere, n.1899–
- -zygous, comb. form
- zygozoospore, n.1881–
- Zyklon, n.1939–
- zymad, n.1885–
- zymase, n.1875–
- zymate, n.1817–19
- zyme, n.1882–
- zymic, adj.1817–26
Etymology
Meaning & use
- 1899–One of a number of germ-cells or sporozoites produced by budding from a zygotomere (see below).Stressed as zyˈgotoblast.
- 1899
Zygotoblasts
[see zygotomere n.].
the world life biology biological processes procreation or reproduction reproductive substances or cells [nouns] zygote or syngamete zygotomere, etc.- zoozygosphere1880–(In algae and fungi) a motile gamete; also called planogamete, zoogamete.
- zygotoblast1899–One of a number of germ-cells or sporozoites produced by budding from a zygotomere (see below).
- zygotomere1899–One of a number of cells formed by segmentation of a zygote in the malaria parasite or other Sporozoa.
Frequency
zygotoblast typically occurs fewer than 0.01 times per million words in modern written English.
zygotoblast 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 of zygotoblast, n., 1900–2010
* 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 |
|---|---|
| 1900 | 0.0016 |
| 1910 | 0.0014 |
| 1920 | 0.0011 |
| 1930 | 0.0009 |
| 1940 | 0.0002 |
| 1950 | 0.0001 |
| 1960 | 0.00004 |
| 1970 | 0.00004 |
| 1980 | 0 |
| 1990 | 0 |
| 2000 | 0 |
| 2010 | 0 |