Word: SI
Part of speech: Adjective
Syllables: si
Definition: initialism of sacroiliac. Relating to the sacrum and ilium, or to the region of the lower back where they are located.
Morphemes:
Affix: SI
Language: en
PoS: Adjective
Meaning: initialism of sacroiliac. Relating to the sacrum and ilium, or to the region of the lower back where they are located.