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
The internal organs, especially the intestines; viscera.
Internal parts: "sidewalk repair shops, where the entrails of bicycles and cars and motorcycles are spread, mechanics poring over them"(Alan Cowell).
[From Middle English entraille, from Old French, from Medieval Latin intrālia, alteration of Latin interānea, from neuter pl. of interāneus, internal, from inter, within; see en in Indo-European roots.]
c.1300, from O.Fr. entrailles, from L.L. intralia "inward parts, intestines" (8c.), from L. interanea, neut. pl. of interaneus "internal," from inter "between, among."