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The edge or border; the edge of a body of water where it meets the land. As applied to a boundary line of land, the margin of a river, creek, or other watercourse means the center of the stream. But in the case of a lake, bay, or natural pond, the margin means the line where land and water meet.In finance, the difference between market value of loan collateral and face value of loan.

A sum of money, or its equivalent, placed in the hands of a Broker by the principal or person on whose account a purchase or sale of Securities is to be made, as a security to the former against losses to which he or she may be exposed by subsequent fluctuations in the market value of the stock. The amount paid by the customer when he uses a broker's credit to buy a security.

In commercial transactions the difference between the purchase price paid by an intermediary or retailer and the selling price, or difference between price received by manufacturer for its goods and costs to produce. Also called gross profit margin.

West's Encyclopedia of American Law, edition 2. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Procedures that result in decreased CRR: Abutment preparation for overdentures has the most dramatic effect on the ratio; reducing the crown to 1 to 2 mm above the free gingival margin, can improve the CRR from 1:1 to 1:2 or even 1:3.
Recession depth (RD) was measured from the cemento enamel junction to the free gingival margin at the deepest site by using William's periodontal probe (Hufriedy, USA).
In addition to the loss of attached gingiva, observations in this case included ulcerations at the free gingival margin, tooth abrasion, deposits of dental plaque related to the affected area and an increase in dental hypersensitivity.
The free gingival margin presents a distinct linear red band with an increased tendency to bleed spontaneously and it is resistant to conventional periodontal therapy.