sesquizygotic

sesquizygotic

English

Etymology

From sesqui- +‎ zygotic.

Adjective

sesquizygotic (comparative more sesquizygotic, superlative most sesquizygotic)

1. Describing twins which are "semi-identical", formed from one egg fertilised by two separate sperm.
   • 2019, Nicolas Davis, The Guardian, 27 February:

     Gabbett said that while there might be other, unreported, cases of sesquizygotic twins, it remains a very unusual phenomenon.