crustalshift
nounUK /ˈkrʌstəlʃɪft/
US /ˈkrʌstəlʃɪft/
A crustalshift is when the hard outer layer of something moves or changes.
The scientist studied the crustalshift to learn how the ground moved.
OTHER MEANINGS
2. A sudden change in the top covering of a planet or moon.
The crustalshift on the moon left a long crack.
3. A small movement of a hard outer shell, like on a crab.
The crab's crustalshift let it grow a bigger shell.
4. A change in the top part of a rock or soil layer.
The rain caused a crustalshift in the dry dirt.