noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   plural of psi form-of, plural
2. 2
   Initialism of posterior superior iliac spine. abbreviation, alt-of, initialism

Synonyms

All synonyms

pounds per square inchpounds per square inch

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