अवस्वन्avasvan1 P. To sound, to smack the lips, make a noise in eating.
1 Parasmaipada To sound, to smack the lips, make a noise in eating.
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.