ulba | उल्ब | ulba
u/lba | उ/ल्ब | or u/lva | उ/ल्व | (rarely as | अस् |, m.), am | अम् |, n. (√ uc | उच् |, ‘to accumulate’, Uṇ. iv, 95; more probably fr. √ 1. vf | व्फ़् |, BRD.), a cover, envelope, esp. the membrane surrounding the embryo, RV. x, 51, 1; AV. iv, 2, 8; VS.; TS.; ŚBr. &c.; the vulva, womb, VS. xix, 76; a cave, cavity, L.; [cf. Lat. alvus, vulva; Lith. urwā, üla.]