Definition that contains upper side
- lap the upper side of the thighs of a seated person
- flatfish any of several families of fishes having flattened bodies that swim along the sea floor on one side of the body with both eyes on the upper side
- overthrust fault a geological fault in which the upper side appears to have been pushed upward by compression
- reverse fault a geological fault in which the upper side appears to have been pushed upward by compression
- thrust fault a geological fault in which the upper side appears to have been pushed upward by compression