collateral Definition

property (such as securities) pledged by a borrower to protect the interests of the lender

a collateral relative

a branch of a bodily part (such as a vein)

accompanying as secondary or subordinate : concomitant

indirect

serving to support or reinforce : ancillary

injury inflicted on something other than an intended target; specifically : civilian casualties of a military operation

a ligament of the inner knee that connects medial parts of the femur and tibia and helps to stabilize the knee joint —called also MCL

ulnar collateral ligament —called also MCL

a triangular ligament of the inner side of the elbow that connects the medial parts of the humerus with the ulna, helps to stabilize the elbow joint, and is often injured in sports (such as baseball) which involve repeated overhand throwing —called also UCL

a ligament of the wrist on the little finger side that connects the distal end of the ulna with bones in the wrist and helps to stabilize the wrist joint —called also UCL

a ligament of the inner thumb that connects the two bones at the base of the thumb and helps to stabilize the thumb —called also UCL

a surgical procedure in which a torn ulnar collateral ligament of the elbow is replaced with a tendon graft typically obtained from a superficial muscle of the forearm : tommy john surgery