subword

English

Etymology

sub- +‎ word

Noun

subword (plural subwords)

1. (mathematics) A substring.
2. (computing) A portion of a word (fixed-size group of bits).

Adjective

subword (not comparable)

1. (computing) Of less than a word (fixed-size group of bits).
   • 2001, Yu Hen Hu, Programmable Digital Signal Processors: Architecture, page 98:

     Therefore, to implement this packed add operation, it is necessary and sufficient to block the carry propagation across the subword boundaries.