|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|a chattering or flighty, light-headed person.|
Neo-Darwinism Ne·o-Dar·win·ism (nē'ō-där'wə-nĭz'əm)
Darwinism as modified by the findings of modern genetics.
|Neo-Darwinism (nē'ō-där'wə-nĭz'əm) Pronunciation Key
Darwinism as modified by the findings of modern genetics, stating that mutations due to random copying errors in DNA cause variation within a population of individual organisms and that natural selection acts upon these variations.