腹吸盘

acetabulum (part of the pelvis bone)

abdomen / stomach / belly

to breathe / to suck in / to absorb / to inhale

suction pad / sucker

plate / dish / tray / board / hard drive (computing) / to build / to coil / to check / to examine / to transfer (property) / to make over / classifier for food: dish, helping / to coil / classifier for coils of wire / classifier for games of chess