-ploidcomb. form

Primary stress is retained by the usual stressed syllable of the preceding element; see e.g. tetraploid adj.

Origin: Formed within English, by clipping or shortening. Etymons: haploid adj., diploid adj.

Etymology: < -ploid (in haploid adj., diploid adj.).

Genetics.

Forming adjectives analogous to haploid and diploid denoting the number of chromosome sets in a cell or organism; occasionally with a prefixed Arabic number, as 16-ploid.

ΚΠ

1928 Hereditas 10 245 Blackburn..has described two races of Silene ciliata differing in chromosome number, the one being tetraploid (as compared with most other Silene-species), the other 16-ploid.

1985 Canad. Jrnl. Biochem. 63 1064 The final round of DNA replication in the adult female fat body..produces 8-ploid and 16-ploid cells active in vitellogenin synthesis.

1999 Development 126 293 During these cycles a new polytene chromosome grows from each 2C chromatid pair to generate 32-ploid polytene nuclei.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2020).

单词	-ploid
释义	-ploidcomb. form Primary stress is retained by the usual stressed syllable of the preceding element; see e.g. tetraploid adj. Origin: Formed within English, by clipping or shortening. Etymons: haploid adj., diploid adj. Etymology: < -ploid (in haploid adj., diploid adj.). Genetics. Forming adjectives analogous to haploid and diploid denoting the number of chromosome sets in a cell or organism; occasionally with a prefixed Arabic number, as 16-ploid. ΚΠ 1928 Hereditas 10 245 Blackburn..has described two races of Silene ciliata differing in chromosome number, the one being tetraploid (as compared with most other Silene-species), the other 16-ploid. 1985 Canad. Jrnl. Biochem. 63 1064 The final round of DNA replication in the adult female fat body..produces 8-ploid and 16-ploid cells active in vitellogenin synthesis. 1999 Development 126 293 During these cycles a new polytene chromosome grows from each 2C chromatid pair to generate 32-ploid polytene nuclei. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2020). < comb. form1928
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