"Abnormal curvature" refers to a deviation or irregularity in the usual shape or bend of something, such as a body part or an object. It means there is a difference or abnormality in the normal curve or alignment. Full definition
Injections of the decoy cut the percentage of mice that showed abnormal curvature of the spine from 80 % to as little as 6 %, depending on the dose. (sciencemag.org)
Astute readers will have spotted it's no myth - EU directive 2257/94 prevents bananas (of any class) exhibiting «abnormal curvature of the fingers». (totalpolitics.com)
Implant for children promises to straighten young spines Scientists in Spain and France have developed a new implant designed to help children with scoliosis, abnormal curvature of the spine. (scientificamerican.com)