gastrointestinal

As a noun gastroenterologist

is a physician who specializes in gastroenterology.

As an adjective gastrointestinal is

of or pertaining to the stomach and intestines.

As an adjective gastrointestinal

is of or pertaining to the stomach and intestines.

As an initialism gut is

grand unification theory.

As a noun internist

is a physician who specialises in internal medicine.

As an adjective gastrointestinal is

of or pertaining to the stomach and intestines.

As adjectives the difference between gastrointestinal and genitourinary

is that gastrointestinal is of or pertaining to the stomach and intestines while genitourinary is (anatomy) of, or relating to the genital and urinary systems of the body together with their function, disease etc.

As adjectives the difference between gastroenterological and gastrointestinal

is that gastroenterological is of or pertaining to gastroenterology while gastrointestinal is of or pertaining to the stomach and intestines.

As an adjective gastrointestinal is

of or pertaining to the stomach and intestines.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective gastrointestinal is

of or pertaining to the stomach and intestines.

As an adjective gastrointestinal

is of or pertaining to the stomach and intestines.

As a noun sludge is

a generic term for solids separated from suspension in a liquid.

As a verb sludge is

to slump or slouch.

As an initialism SLUDGE is

a mnemonic ("salivation, lacrimation, urination, defecation, gastrointestinal upset, emesis") used to identify the common symptoms of certain affections of a cholinergic toxidrome.