the internal parts of the trunk of an animal body.
2.
the intestines.
3.
the internal parts of anything: the entrails of a machine.
Origin: 1250–1300; ME entrailles < AF, MF < VL *interālia (cf. early ML intrālia), alter., by suffix change (see -al1), of L interānea guts, neut. pl. of interāneus; see inter-,-an, -eous