Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
intestine [ɪnˈtɛstɪn] n кишка́#
large/small intestine то́лстая/то́нкая кишка́
intestines кише́чник msg
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: