Dictionary Definition:
dvādaśâkṣara (dvā́-), mf(ā)n. containing 12 syllables VS. ŚBr. • -mantra m. the prayer of 12 syllables addressed to Vishṇu (cf. dvādaśa-pattraka) PadmaP. • -mālā (cf. Cat.) and' -vidyā (cf. BhP.), f. probably id