IPA: /ˈhaɪpərplɔɪd/
KK: /haɪpərplɔɪd/
Referring to a condition where an organism has more chromosomes than the standard number, but not in a way that is a perfect multiple of that number.
The hyperploid cells showed an unusual number of chromosomes during the analysis.
Hyperploid is formed from "hyper-" (meaning over or excessive) and "ploid" (from Greek "ploides", meaning fold or layer). The term describes a condition of having more than the normal number of chromosome sets, indicating an excessive or overabundant state of ploidy.
Think of 'hyper-' meaning 'over' and 'ploid' relating to 'folds' of chromosomes — this helps you remember that 'hyperploid' refers to having an excessive number of chromosome sets.