Medical Definition of intestinal juice
: a fluid that is secreted in small quantities in the small intestine, is highly variable in constitution, and contains especially various enzymes (as erepsin, lipase, lactase, enterokinase, and amylase) and mucus—called also succus entericus
Seen and Heard
What made you want to look up intestinal juice? Please tell us where you read or heard it (including the quote, if possible).