Dhanus. The archer's bow that in Hindu tradition was, along with the arrows and other equipment, the badge of the kṣatriya or warrior class.

Geddes MacGregor, Dictionary of Religion and Philosophy, New York: Paragon House, 1989

dhánus n. (m. g. ardharcâdi
• cf. dhanu) a bow RV. &c. &c
• a measure of length = 4 Hastas or 1/2000 Gavyūti Mn. Yājñ. &c
• (geom.) an ārc or past of a circle
• (astron.) an are or quadrant for ascertaining the sun's altitude and zenith-distance
• a fiddlestick
• the sign of the zodiac Sagittarius Sūryas. Var.
• Buchanania Latifolia L.
• N. of Śiva MBh. vii, 9536 (armed with a bow L., or = dhanuḥsvarūpa Nīlak.)
• a desert, arid land (cf. ○nur-áur. ga)

Sanskrit-English Dictionary, by M. Monier William