Term: etidronic acid
IPA: ˌɛt.ɪˌdɹɑn.ɪk ˈæs.ɪd

==English==
[[File:Etidronic acid.svg|thumb|200px|Chemical structure of '''etidronic acid''']]
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===Etymology===
From {{af|en|ethyl|alt1=ethy(l)|hydroxy|alt2=(hy)dro(xy)|phosphonic acid|alt3=(phosph)onic acid}}.

===Pronunciation===
* {{IPA|en|/ˌɛt.ɪˌdɹɑn.ɪk ˈæs.ɪd/|a=GA}}
* {{rhymes|en|æsɪd}}

===Noun===
{{en-noun|-}}

# {{lb|en|pharmaceutical drug}} The [[phosphonic acid]] (1-[[hydroxy-]]1-[[phosphonate|phosphono]]-[[ethyl]])[[phosphonic acid]] which [[inhibit]]s the [[formation]], [[gro