Soft dairy product made by coagulating milk

In some contexts, it can refer to a coagulated mass (not limited to dairy)

ठोस द्रव्यमान

English Usage: The curds formed in the chemical reaction were surprising.

Hindi Usage: रासायनिक प्रतिक्रिया में ठोस द्रव्यमान बनना चौंकाने वाला था।