尻座 is read as こうざ (kouza) and means crouching.
こうざ
kouza
しっぽ
tail (animal)
しり
consequence
そくざ
immediate
せいざ
constellation
seiza
じょうざ
chief seat
academic university unit (professor, lecturers, etc.)
account (e.g. bank)
ぎんざ
Ginza (Tokyo neighborhood)
ざ
attaches to the names of constellations
れんざ
sitting in a row (in the same seat)
いちざ
(one) statue