Synonyms:
pancajanyam–the conchshell named Pancajanya; hrsika-isah–Hrsikesa (Krsna, the Lord who directs the senses of the devotees); devadattam–the conchshell named Devadatta; dhanam-jayah–Dhananjaya (Arjuna, the winner of wealth); paundram–the conch named Paundra; dadhmau–blew; maha-sankham–the terrific conchshell; bhima-karma–one who performs herculean tasks; vrka-udarah–the voracious eater (Bhima).
Translation:
Then, Lord Krsna blew His conchshell, called Pancajanya; Arjuna blew his, the Devadatta; and Bhima, the voracious eater and performer of Herculean tasks, blew his terrific conchshell called Paundram.