subblock

noun

sub·​block ˈsəb-ˌbläk 

variants or sub-block

plural subblocks or sub-blocks

: a block that is a subdivision of a larger block: such as

a

: a functional subdivision of a building or part of a building

b

: a subdivision of a quantity, number, or section of things dealt with as a unit

a sub-block of data

Word History

First Known Use

1857, in the meaning defined above