olive drab

olive drab
    n 1: a dull greyish to yellowish or light olive brown [syn:
         {olive drab}, {drab}]
    2: military uniform of the United States Army; made from cloth
       of a dull olive color [syn: {olive drab}, {olive-drab
       uniform}]
    3: a cloth of an olive-brown color used for military uniforms