cloaca

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clo·a·ca

 (klō-ā′kə)
n. pl. clo·a·cae (-sē′)
1. A sewer or latrine.
2. Zoology
a. The common cavity that serves as the opening for the intestinal, genital, and urinary tracts in many vertebrates, including amphibians, reptiles, birds, monotremes, and some fishes.
b. The posterior part of the intestinal tract in various invertebrates.

[Latin cloāca, sewer, canal.]

clo·a′cal (-kəl) adj.

cloaca

(kləʊˈeɪkə)
n, pl -cae (-kiː)
1. (Zoology) a cavity in the pelvic region of most vertebrates, except higher mammals, and certain invertebrates, into which the alimentary canal and the genital and urinary ducts open
2. a sewer
[C18: from Latin: sewer; related to Greek kluzein to wash out]
cloˈacal, cloˈacaline, ˌcloaˈcinal adj

clo•a•ca

(kloʊˈeɪ kə)

n., pl. -cae (-sē).
1.
a. the common cavity into which the intestinal, urinary, and generative canals open in birds, reptiles, amphibians, many fishes, and certain mammals.
b. a similar cavity in invertebrates.
2. a sewer, esp. an ancient sewer.
[1650–60; < Latin clo(u)āca, cluāca sewer, drain]
clo•a′cal, adj.

clo·a·ca

(klō-ā′kə)
The body cavity into which the intestinal, urinary, and genital canals empty in birds, reptiles, amphibians, most fish, and the primitive mammals known as monotremes. The cloaca has an opening for expelling its contents from the body.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cloaca - (zoology) the cavity (in birds, reptiles, amphibians, most fish, and monotremes but not mammals) at the end of the digestive tract into which the intestinal, genital, and urinary tracts open
bodily cavity, cavum, cavity - (anatomy) a natural hollow or sinus within the body
zoological science, zoology - the branch of biology that studies animals
2.cloaca - a waste pipe that carries away sewage or surface watercloaca - a waste pipe that carries away sewage or surface water
drainpipe, waste pipe, drain - a pipe through which liquid is carried away
sewage system, sewage works, sewer system - facility consisting of a system of sewers for carrying off liquid and solid sewage
Translations
References in periodicals archive ?
failure of cloacal septation resulting in a common cloaca, breakdown of cloacal membrane resulting in omphalocele and exstrophy or incomplete vertebral fusion resulting in open neural defects.