Ria
noun
1.
a long, narrow inlet of a river that gradually decreases in depth from mouth to head.
noun
1.
a long narrow inlet of the seacoast, being a former valley that was submerged by a rise in the level of the sea. Rias are found esp on the coasts of SW Ireland and NW Spain
abbreviation
1.
Royal Irish Academy
RIA abbr.
radioimmunoassay
RIA
1.
radioimmunoassay
2.
Research Institute on Addictions
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