nZumbooruk(Mil) A small cannon supported by a swiveled rest on the back of a camel, whence it is fired, -- used in the East.
Century Dictionary and Cyclopedia
nzumboorukA small cannon mounted on a swivel, usually shorter and with larger bore than the zingal. In English writings the name is especially applied to such a piece carried on a camel, the pivot which supports it being erected on the saddle in front of the rider.
Chambers's Twentieth Century Dictionary
nZumboorukzum′bōō-ruk a small cannon mounted on a swivel, carried on the back of a camel