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1. A surface forming a common boundary between adjacent regions, bodies, substances, or phases.
2. A point at which independent systems or diverse groups interact: "the interface between crime and politics where much of our reality is to be found" (Jack Kroll).
3. Computers
a. A system of interaction or communication between a computer and another entity such as a printer, another computer, a network, or a human user.
b. A device, such as a cable, network card, monitor, or keyboard, that enables interaction or communication between a computer and another entity.
c. The layout or design of the interactive elements of a computer program, an online service, or an electronic device.
v. (ĭn′tər-fās′) in·ter·faced, in·ter·fac·ing, in·ter·fac·es
1. To join by means of an interface.
2. To serve as an interface for.
1. To serve as an interface or become interfaced.
2. Usage Problem To interact or coordinate smoothly: "Theatergoers were lured out of their seats and interfaced with the scenery" (New York Times).

in′ter·fa′cial adj.
Usage Note: The noun interface, meaning "a surface forming a common boundary, as between bodies or regions," has been around since the 1880s. But the word did not really take off until the 1960s, when it began to be used in the computer industry to designate the point of interaction between a computer and another system, such as a printer. The word was applied to other interactions as well—between departments in an organization, for example, or between fields of study. Shortly thereafter, interface developed a use as a verb, but many people objected to it, considering it an example of bureaucratic jargon. The Usage Panel has been unable to muster much enthusiasm for the verb. In our 2011 survey, 57 percent found it unacceptable in an example designating interaction between people: The managing editor must interface with a variety of freelance editors and proofreaders. This level of disapproval is only slightly lower than the 63 percent recorded in our 1995 survey, suggesting that writers who wish to avoid a jargony tone would do well to avoid the usage. In 2011, a slightly larger percentage disapproved of interface in examples indicating interaction between a corporation and the public (66 percent) or between various communities in a city (65 percent).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌɪn tərˈfeɪ ʃəl)

1. included between two faces.
2. pertaining to or of the nature of an interface.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.interfacial - relating to or situated at an interface; "an interfacial layer"; "interfacial tension is the surface tension at the interface between two liquids"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Broadband dielectric spectroscopy with wide temperature (-30[degrees]C to 160[degrees]C) and frequency (40-[10.sup.8] Hz) ranges can provide a highly accurate and powerful measurement for the investigation of molecular chain mobility, interfacial effects and dielectric properties in polymers.
Optimizations are proposed to obtain reliable solder joints through analysis of interfacial microstructure with the resulting joint integrity under extended reflow time.
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Formulation Science and Technology; Volume 1: Basic Theory of Interfacial Phenomena and Colloid Stability
The interfacial momentum term differs depending on which flow regime is working.
To date, the main reasonable hypotheses proposed to explain the modification of the solidification structure are the increase in the solid-liquid interfacial tension [8], the reduction in the nucleation activation energy [9], the suppression of grain growth due to Joule heating [10], current crowding due to the differing electrical conductivities of solid and liquid [11], electromigration [12], and melt flow caused by Lorentz force [13], but all these taken together do not provide a consistent picture of the solidification structure evolution under electric current.
The interfacial shear strength (IFSS) is a key parameter that influences the adhesion performance between the fiber and matrix [3, 4].
With the deepening of the research on the twophase flow and boiling heat transfer, it has been found that distribution of the local interfacial parameter has an important influence on the flow and heat transfer characteristics of the two-phase flow, and the capability to predict the local void distribution in subcooled flow boiling is of great importance for the safety of boiling water reactor.
Emulsifiers absorbed at the oil droplet surfaces create an interfacial membrane comprised of a layer formed of their hydrophobic tails and a layer formed of their hydrophilic heads.
Inorganic filler with high surface roughness (which can be achieved by many methods as plasma pretreatment, acidic or alkaline corrosion, surface modification, etc.) favored the interfacial interaction between the filler and matrix [17-20].