वासिष्ठ a. (ष्ठी f.) [वसि- शि-ष्ठ-अण्] Belonging to or composed by (rather revealed to) Vasishṭha, as a Maṇḍala of the Ṛgveda. −ष्ठः A descendant of Vasishṭha. −ष्ठी The Gomatī river.