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sub·line | \ ˈsəb-ˌlīn 
\
\Definition of subline
: an inbred or selectively cultured line (as of cells) within a strain
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subline
nounsub·line | \ ˈsəb-ˌlīn \
\Medical Definition of subline
: an inbred or selectively cultured line (as of cells) within a strain
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Time Traveler for subline
The first known use of subline was in 1942
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