वादिन्vādina.Speaking, talking, discoursing.
[वद्-णिनि]
वेदवादरताः पार्थ नान्यदस्तीति वादिनः ॥
कोशःDictionaries
V. S. Apte, The Practical Sanskrit–English Dictionary. Look up any word of the Gita in Devanagari, IAST or Harvard-Kyoto, or browse the headwords letter by letter.