Found in the following dictionaries
OTCWL2014 (NASPA Word List 2014)
"Etidronate" Definition
noun
Any salt or ester of etidronic acid, but especially the sodium salt, which is used to reduce calcium loss from bones.
Source: Wiktionary
A white sodium salt CHNaOP that inhibits the formation, growth, and dissolution of hydroxyapatite crystals and is administered orally in the treatment of some bone diseases (as Paget's disease of bone) .
Source: Merriam-Webster
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