chine 
(chīn)
(chīn)n.
1.
a. The backbone or spine, especially of an animal.
b. A cut of meat containing part of the backbone.
2. A ridge or crest.
3. Nautical The line of intersection between the side and bottom of a flatbottom or V-bottom boat.
tr.v. chined, chin·ing, chines
To cut (a carcass, for example) through the spine, as when butchering.
[Middle English, from Old French eschine, of Germanic origin; see skei- in the Appendix of Indo-European roots.]