Collateral /(kŏl*lăt"ẽr*al)/

Col·lat·er·al

Collateral

a.
  1. Coming from, being on, or directed toward, the side; as, collateral pressure.
  2. Acting in an indirect way.
    If by direct or by collateral hand They find us touched, we will our kingdom give . . . To you in satisfaction.
  3. Related to, but not strictly a part of, the main thing or matter under consideration; hence, subordinate; not chief or principal; as, collateral interest; collateral issues.
    That he [Attebury] was altogether in the wrong on the main question, and on all the collateral questions springing out of it, . . . is true.
  4. Tending toward the same conclusion or result as something else; additional; as, collateral evidence.
    Yet the attempt may give Collateral interest to this homely tale.
  5. Descending from the same stock or ancestor, but not in the same line or branch or one from the other; -- opposed to lineal. (Genealogy)

Phrases & Compounds
Collateral assurance
that which is made, over and above the deed itself.
Collateral circulation
circulation established through indirect or subordinate branches when the supply through the main vessel is obstructed.
Collateral issue
An issue taken upon a matter aside from the merits of the case.
Collateral security
security for the performance of covenants, or the payment of money, besides the principal security.
collateral damage
damage caused by a military operation, such as a bombing, to objects or persons not themselves the intended target of the attack.

Collateral

n.
  1. A collateral relative.
  2. Collateral security; that which is pledged or deposited as collateral security.