noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Pressure that is opposed to the flow of a fluid. countable, uncountable
2. 2
   The buildup of unprocessed data due to a bottleneck. countable, uncountable

Etymology

From back + pressure.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.