Definition of "nucleobases" [nucleobases]

• Plural form of nucleobase. (noun)

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• "At the center of the ladderlike DNA molecule lie ringlike structures called nucleobases."
• "Prof. Müller's team replaced some of the so-called nucleobases, found inside each DNA spiral, with artificial components."
• "“Extraterrestrial nucleobases in the Murchison meteorite.”"