pentaploid

/ˈpɛntəˌplɔɪd/
adjective
  1. Having five sets of chromosomes in each cell, instead of the usual two sets.
    • The pentaploid wheat variety was created in the lab for research.
    • Pentaploid organisms often have trouble reproducing because of their unusual chromosome number.
    • Some plants are pentaploid, which can make them larger than normal.
noun
  1. An organism or cell that has five sets of chromosomes.
    • This pentaploid was bred to study how extra chromosomes affect growth.
    • The farmer discovered a pentaploid among his strawberry plants.
    • Pentaploids are rare in nature but can be made in a laboratory.