What does celiac mean?
"Celiac" is primarily a medical term describing anything connected with celiac disease, an autoimmune condition in which consuming gluten—a protein found in wheat, barley, and rye—triggers an immune response that damages the lining of the small intestine. It is most often used attributively in phrases such as "celiac disease" or "a celiac diet," and it can also serve informally as a noun meaning a person who has the condition, as in "this menu is safe for celiacs." In anatomy, an older sense survives in terms like "celiac artery," referring to structures of the abdominal cavity, since the word derives from the Greek koilia, meaning belly. The adjective carries a clinical rather than emotional connotation and is standard register in both medicine and everyday health discussion. American spelling is "celiac"; British English typically uses "coeliac." Because awareness of the disease has grown sharply in recent decades, the word now appears frequently on food packaging, restaurant menus, and dietary guidance.
Relating to or affected with celiac disease, an autoimmune condition in which gluten damages the small intestine.
"He keeps certified celiac-safe oats in his pantry."
This is by far the most common current use of the word.
(Anatomy) Of or relating to the abdominal cavity, especially in older anatomical terminology such as "celiac artery" or "celiac plexus."
"The surgeon traced the tumor's blood supply to the celiac trunk."
A person who has celiac disease and must follow a strictly gluten-free diet.
"The restaurant trains its kitchen staff to prepare meals safely for celiacs."
Used only when "celiac" functions as a noun meaning a person with celiac disease.
"The support group meets monthly and is open to all celiacs in the area."
The word literally means 'of the belly' in Greek — so every time someone says they're celiac, they're using a term that's over two thousand years old.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of celiac
"Celiac" comes from the Latin coeliacus, itself borrowed from the ancient Greek koiliakos, meaning "of the belly," a derivative of koilia, "belly" or "abdominal cavity." The term entered English medical vocabulary around the early nineteenth century, when physicians such as Samuel Gee applied it to the chronic intestinal disorder later understood as celiac disease. The same Greek root underlies "coelom," the name for a body cavity in biology, and appears in the British spelling "coeliac."
How celiac is actually used
In British English the standard spelling is "coeliac"; "celiac" is the usual American form. The anatomical sense (as in "celiac artery") is now mostly confined to formal medical writing, while everyday use almost always refers to celiac disease or to people who have it.
Easily confused with celiac
"Iliac" refers to the ilium of the hip bone or its region, while "celiac" relates to the abdominal cavity or to celiac disease.