This is the 12163rd most frequent Spanish word.
intestinal
Relating to the intestine.
'Intestinal' is used here as an adjective to describe the system related to the intestines.
El sistema intestinal es fundamental para la digestión.
The intestinal system is essential for digestion.
'Intestinal' here specifies the part of the tract that pertains to the intestines.
Se utilizó una sonda para examinar el tracto intestinal.
A probe was used to examine the intestinal tract.
In this case, 'intestinal' identifies the location of the obstruction, which is in the intestines.