[tud-thak] 1 Fire.

2 A stone. tthaṃ Sulphate of copper, usu- ally applied to the eyes as a sort of collyrium or medical ointment. tthā 1 Small cardamoms.

2 The indigo plant. Comp. aṃjanaṃ blue vitriol applied to the eyes as a me- dical ointment.