RIA(redirected from Drowned river valley)
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Any broad, estuarine river mouth.
A long, narrow coastal inlet, except a fjord, whose depth and width gradually and uniformly diminish inland.
RIA(1) (Rich Internet Application) An application that approaches the speed and elegance of a locally installed application. An RIA typically refers to an app that uses the Web browser to run embedded scripts within Web pages. However, it may also refer to a "rich client application" that interacts with the Internet in some manner but does not run from the browser (see rich client). See Silverlight, Flex and AJAX.
(2) (Regulatory Impact Analysis) See healthcare IT.