What does ceca mean?
Ceca is the plural of cecum, the rounded, blind-ended pouch where the large intestine begins, sitting at the junction with the small intestine. Because many animals possess more than one, scientific writing frequently needs this plural form: rabbits, koalas, and numerous bird species have paired ceca, often greatly enlarged to serve as fermentation chambers where gut bacteria break down cellulose and other tough plant fibers. In humans, the single cecum is comparatively small and best known as the structure to which the appendix attaches. The term appears almost exclusively in anatomy, medicine, veterinary science, and zoology rather than everyday conversation, and it carries no figurative use. British publications traditionally favor the spellings caecum and caeca, while American usage prefers the simpler cecum and ceca. Understanding the plural is useful for anyone reading comparative anatomy, since discussions of digestive systems across species routinely refer to these structures in the plural.
nounCeca is the plural of cecum (also spelled caecum), the pouch forming the beginning of the large intestine where it joins the small intestine.
- The plural form of cecum: one or more blind-ended pouches at the junction of the small and large intestines.
"In many herbivorous birds, the paired ceca house bacteria that help ferment tough plant material."
"The surgeon noted inflammation extending into both ceca during the examination."
"Rabbits rely on their large ceca to extract nutrients from fibrous plant matter."
Ceca is already the plural form; the singular is cecum (US) or caecum (UK). It follows the Latin second-declension pattern.
"Both ceca appeared normal on the scan."
Humans have just one tiny cecum — but koalas and some birds carry two long ones, and theirs do the heavy digestive lifting.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of ceca
The word derives ultimately from the Latin caecus, meaning 'blind', a reference to the pouch's dead-end shape. Latin caecus also gave rise to caecilian, the name of the legless amphibian whose eyes are reduced or hidden beneath its skin. English adopted the anatomical term via New Latin caecum intestinum, literally 'blind intestine', with both the ae and simplified ce spellings in common use today.
Related word forms
How ceca is actually used
Ceca is used almost exclusively in medical, veterinary, and zoological writing. In British English the spellings caecum and caeca are traditional, though cecum and ceca are now widely accepted internationally.
Easily confused with ceca
A cicada is a singing insect related to locusts, while ceca are anatomical pouches at the start of the large intestine.