BILE

[noun] [U] - a bitter golden-yellow liquid produced by the liver which helps to digest fats, or (figurative) bitterness or angerMeat-eaters must produce extensive bile acids in their intestines to properly digest the meat that they eat.(figurative) His article was full of loathing and bile.(figurative) She reserves her bile for her former political colleague, whose politics she now describes as "the vilest on earth".