[mass noun]a natural pigment resembling but darker than ochre, normally dark yellowish-brown in colour (raw umber) or dark brown when roasted (burnt umber) 棕土(一种深棕色天然颜料) ■the colour of this pigment 棕土色,深棕色
brownish moth with colouring that resembles tree bark 赭尺蛾
语源
mid 16th cent.: from French (terre d')ombre or Italian (terra di) ombra, literally ('earth of) shadow', from Latin umbra 'shadow' or Umbra (feminine) 'Umbrian'