A organism or cell that is haploid, containing a single set of chromosomes.
From Greek haplos meaning 'single' or 'simple,' combined with the -ite suffix (used in biology for types of organisms or cellular structures). Emerged in 20th-century genetics terminology.
The Greek root 'haplos' is incredibly productive in modern science—it shows up in 'haplotype,' 'haploinsufficiency,' and dozens of genetic terms—yet almost nobody outside biology knows what 'haplo-' means, even though it's fundamental to understanding inheritance!
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