臼 - mortar

congenital dislocation of the hip; developmental dysplasia of the hip

six-year molar

premolar

acetabular roof

Alaska blueberry (Vaccinium ovalifolium); early blueberry; oval-leaf bilberry; oval-leaf blueberry; oval-leaf huckleberry

acetabulum; cotyloid cavity

millstone; mortar

molar (tooth); grinder; premolar

stone hand mill

quern; hand mill

dislocation of the hip; hip dislocation

cervical dislocation