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sub·branch | \ ˈsəb-ˌbranch 
\
\variants:
or sub-branch
plural subbranches or sub-branches
Definition of subbranch
: a branch that is an offshoot or subdivision of a larger branch
The Southern Tungusic languages are a far more compact and diversified branch, subdivided into the Southeastern and Southwestern subbranches.— William W. Fitzhugh and Aron Crowell Birds are not only related to dinosaurs, they are dinosaurs. They're just a subbranch of dinosaurs.— Michael Novacek a bank subbranch
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The first known use of subbranch was in 1816
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