: one haploid set of chromosomes with the genes they contain
broadly : the genetic material of an organism compare proteome

Examples of genome in a Sentence

Recent Examples on the Web
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In August, the namesake family office of Jeff Bezos also joined a $188 million Series E for LifeMine Therapeutics, which uses AI to analyze fungal genomes to develop new drugs. Hayley Cuccinello, CNBC, 3 Sep. 2026 What seems to stack the deck in favor of surviving whole-genome duplication, David said, is environmental shifts. Carrie Arnold contributing, Quanta Magazine, 2 Sep. 2026 Scientists can sequence a genome, but understanding environmental impacts requires psychologists to follow thousands of people for decades. Jessica Craig, Popular Science, 2 Sep. 2026 See All Example Sentences for genome

Word History

Etymology

German Genom, from Gen gene + -om (as in Chromosom chromosome)

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of genome was in 1926

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Cite this Entry

“Genome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/genome. Accessed 7 Sep. 2026.

Medical Definition

: one haploid set of chromosomes with the genes they contain
broadly : the genetic material of an organism
The idea behind sequencing an organism's genome—decoding, letter by letter, the message contained in every last one of its genes—is that it would tell us a lot about how the organism works. Lori Oliwenstein, Discover

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