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Related; indirect; not bearing immediately upon an issue. The property pledged or given as a security interest, or a guarantee for payment of a debt, that will be taken or kept by the creditor in case of a default on the original debt.

That which is collateral is not of the essence. Collateral facts are facts that are not independently provable from, and that are not directly relevant to, issues in a Cause of Action. Collateral heirs are those individuals who are not directly related to the deceased through consanguinity. Similarly, collateral ancestors are uncles and aunts, as contrasted with direct ancestors, such as parents and grandparents.

West's Encyclopedia of American Law, edition 2. Copyright 2008 The Gale Group, Inc. All rights reserved.


1) n. property pledged to secure a loan or debt, usually funds or personal property as distinguished from real property (but technically collateral can include real estate). 2) adj. referring to something that is going on at the same time parallel to the main issue in a lawsuit or controversy which may affect the outcome of the case, such as adoption of a new federal regulation or a criminal trial of one of the parties.

Copyright © 1981-2005 by Gerald N. Hill and Kathleen T. Hill. All Right reserved.


1 something that is independent of another but relates to the same subject matter, thus, the phrases collateral agreement or collateral guarantee.
2 of the same family line although not in the direct descent.
Collins Dictionary of Law © W.J. Stewart, 2006

COLLATERAL, collateralis. From latus, a side; that which is sideways, and not direct.

HEIR, COLLATERAL. A collateral heir is one who is not of the direct line of the deceased, but comes from a collateral line; as, a brother, sister, an uncle and aunt, a nephew, niece, or cousin of the deceased.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
(11) findings in patients with acute MI, having symptoms onset within 6 hours and underwent primary angioplasty or stenting revealed the importance of pre-intervention angiographic evidence of coronary collateral circulation. According to results of this study in respect of mortality rates, patients with coronary collateral circulation have lower levels of mortality compared with patients without coronary collaterals but in respect of clinical outcomes the effect of coronary collaterals is unclear.
Augustin et al (14) showed the importance of third coronary artery in providing collateral circulation in patients with left coronary artery occlusion.
(6) However complications like buttock claudication, bladder and bowel necrosis have been reported mainly in atherosclerotic patients who did not have good collateral circulation .
Doppler ultrasonographic (USG) evaluation of the antebrachial artery and its collateral circulation, and oxygen saturation measurements via digital pulse oxymetry following application of one-minute pressure over RA have been used in decision-making process (4).
Co-existence of conditions including pericarditis, myocarditis, electrolyte disturbances, early repolarization, collateral circulation etc.
Development of collateral circulation belongs among the typical signs of aortic coarctation (CoA) and can lead to the growth of ectatic, fragile spinal neurovascular malformations.
The long-term outcome of coronary artery disease is mainly determined by the presence or absence of collateral circulation. Vieussens' arterial ring (VAR) refers to the connection between the conus artery and the left anterior descending (LAD) coronary artery's proximal right ventricular branch (1).
For patients with the same diffuse coronary artery disease, many studies have also confirmed that besides myocardial infarction as a risk factor for left ventricular dysfunction, some traditional risk factors for coronary heart disease, such as family history of coronary heart disease, age, smoking, PCI history, stroke history, history of peripheral vascular disease, chronic complete closure, were also confirmed not associated with left ventricular dysfunction, which may be related to the establishment of collateral circulation, ischemic preconditioning, and ischemic postconditioning.10-13 For the elderly patients with CHD excluding MI history, there was no partial loss of myocardial cell mass caused by abrupt closure of the coronary artery.
This ring represents a significant path of collateral circulation under conditions of coronary insufficiency (Sankari et al., 2011).

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