Dictionary Definition:
○tattva n. N. of various wks. (esp. of a Vaiśeshika wk., also called Padârtha-viveka) [Page 1216, Column 2]
• -dīpa m. -prakāśikā f. -bindu (or siddhânta-bindū), m. -bindu-saṃdīpana n. -viveka m. -sarvasva n. N. of wks