: an inbred or selectively cultured line (as of cells) within a strain
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“Subline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subline. Accessed 13 Jul. 2025.
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subline
noun
sub·line
ˈsəb-ˌlīn 
: an inbred or selectively cultured line (as of cells) within a strain
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