Plural of diploid; organisms or cells that contain two complete sets of chromosomes.
From Greek 'diplos' (double) + '-oid' (having the form of) + plural '-s'. The term became standard in genetics in the early 1900s with chromosome theory.
All humans, dogs, and most animals you know are diploids—we got one chromosome set from each parent, which is why we inherit traits from both sides of the family.
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