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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 ?
Since Co[Oct.sub.2] is not interfacially localized, it is expected that reaction rate will depend on catalyst concentration.
However, enhanced protonic transport was observed at low temperature (<100[degrees]C) in water-saturated air, leading to dramatic reductions in the total ionic resistivity ([[rho]]) by orders of magnitude, relative to the protonic resistivity extrapolated from higher temperatures (note that this protonic conduction in the n-BZY at low temperatures was an interfacially driven phenomenon because microstructured BZY with grain size ~1 [micro]m hardly showed protonic conduction, although the data are not shown here).
We hypothesise that the largest droplets (above 15 [micro]m, Figures 3(a) and 3(b)) may be coalesced oil bodies formed on grinding and weakly stabilised by interfacially active materials (proteins, micron size particle material, and phospholipids) released and/or produced on pecans milling.
Ahmadian, "Interfacially compatibilized LDPE/ POE blends reinforced with nanoclay: Investigation of morphology, rheology and dynamic mechanical properties," Polymer Bulletin, vol.
The pressable veneers failed mainly cohesively (within the porcelain) with no liner and interfacially (between the core and veneer) when liner is applied, whereas the layered veneers failed cohesively with liner and interfacially with no liner.
Chu, "High flux nanofiltration membranes based on interfacially polymerized polyamide barrier layer on polyacrylonitrile nanofibrous scaffolds," Journal of Membrane Science, vol.
In contrast, the DTS of the two composites prepared from interfacially improved HA (PLA/HA-PLA-A and PLA/HA-PLA-B) were (37.3 [+ or -] 1.4) and (38.3 [+ or -] 2.3) MPa, respectively.

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