double-barreled

from WordNet (r) 3.0 (2006)

double-barreled
    adj 1: having two barrels mounted side by side; "a double-
           barreled shotgun" [syn: {double-barreled}, {double-
           barrelled}] [ant: {single-barreled}, {single-barrelled}]
    2: having two purposes; twofold; "our double-barreled desire to
       make things profitable as well as attractive"- Louis
       Kronenbergers [syn: {double-barreled}, {double-barrelled}]

from The Collaborative International Dictionary of English v.0.48

Double-barreled \Dou"ble-bar`reled\, or -barrelled \-bar`relled\
,  a.
   Having two barrels; -- applied to a gun.
   [1913 Webster]