What does colic mean?
Colic is a noun with two closely related uses. In everyday speech it most commonly describes a baffling condition of early infancy: a healthy, well-fed baby who cries intensely and inconsolably for hours at a time, often in the evening, without any identifiable medical cause. Pediatricians traditionally applied the 'rule of threes' — crying for more than three hours a day, on more than three days a week, for more than three weeks — and reassured parents that colic typically resolves on its own by three to four months of age. In medicine, colic has a broader, older sense: severe, wave-like abdominal pain produced when a hollow organ such as the intestine, ureter, or gallbladder goes into spasm or becomes obstructed, hence terms like renal colic and biliary colic. Veterinarians use it similarly for horses, where it can be an emergency. The word carries connotations of distress and helplessness — for parents, exhausting nights; for clinicians, acute pain — yet its underlying meaning is simple: gripping, cramping agony rooted in the gut, a history reflected in its Greek origin from kolon, the large intestine.
Prolonged, inconsolable crying and distress in an otherwise healthy infant, of unknown cause, typically occurring in the first three to four months of life.
"Swaddling, white noise, and patient rocking did little to soothe the baby's evening colic."
This is the dominant everyday sense; it describes a behavioral pattern rather than a specific disease.
Severe, spasmodic abdominal pain resulting from cramping or obstruction of the intestines or another hollow internal organ; used with a qualifying word such as renal, biliary, or intestinal.
"A kidney stone sent her to the emergency room with excruciating renal colic."
In veterinary medicine, especially concerning horses, colic is treated as a potential emergency requiring urgent attention.
Rarely pluralized; the singular 'colic' is normally used both for the condition generally and for individual episodes, though 'attacks of colic' or 'bouts of colic' is the usual way to express recurrence.
"The foal had suffered several bouts of colic over the winter."
Doctors still can't fully explain colic: by the classic 'rule of threes,' a baby cries more than three hours a day, more than three days a week, for more than three weeks — and nobody knows exactly why.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of colic
Colic derives from the Greek kolikos, meaning 'of the colon', itself formed on kolon, the large intestine — so the word literally names the part of the body where the pain strikes. It passed into Latin as colicus and entered English via Old French and medical Latin around the late Middle Ages, initially in physicians' writing before broadening into general use. The same Greek root kolon underlies modern anatomical and medical terms such as colon, colitis, and colostomy.
Related word forms
How colic is actually used
In modern everyday use, 'colic' most often refers to the infant condition, where it is a descriptive label rather than a disease diagnosis. In medical contexts it denotes spasmodic visceral pain, qualified by the organ involved (renal, biliary, intestinal). In equestrian usage, colic is a serious and potentially life-threatening emergency.
Easily confused with colic
Cholic relates to bile or bile acids (as in cholic acid), while colic refers to spasmodic abdominal pain — the two look similar but share no meaning.