PSIS
Noun
Meaning
PSIS (plural PSISs or PSISes)
(anatomy) Initialism of posterior superior iliac spine.
Coordinate terms: ASIS, AIIS, PIIS
Noun
PSIS (plural PSISs or PSISes)
(anatomy) Initialism of posterior superior iliac spine.
Coordinate terms: ASIS, AIIS, PIIS