epithelium(redirected from transitional epithelium)
Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
n. pl. ep·i·the·li·a (-lē-ə) or ep·i·the·li·ums
Membranous tissue composed of one or more layers of cells separated by very little intercellular substance and forming the covering of most internal and external surfaces of the body and its organs.
n, pl -liums or -lia (-lɪə)
(Anatomy) an animal tissue consisting of one or more layers of closely packed cells covering the external and internal surfaces of the body. The cells vary in structure according to their function, which may be protective, secretory, or absorptive
[C18: New Latin, from epi- + Greek thēlē nipple]
ep•i•the•li•um(ˌɛp əˈθi li əm)
n., pl. -li•ums, -li•a (-li ə)
any tissue layer covering body surfaces or lining the internal surfaces of body cavities, tubes, and hollow organs.
The thin, protective layer of cells that covers most of the outer surface of an animal body and lines the inner surface of many body parts. In vertebrate animals, the outer layer of the skin, called the epidermis, is composed of epithelium.
1. A type of animal tissue that covers inner and outer surfaces.
2. The layer of cells covering the body’s surface and lining the alimentary canal and respiratory and urinary tracts.
Switch to new thesaurus
|Noun||1.||epithelium - membranous tissue covering internal organs and other internal surfaces of the body|
endothelium - an epithelium of mesoblastic origin; a thin layer of flattened cells that lines the inside of some body cavities
mesothelium - epithelium originating in the embryonic mesoderm; lines the primordial body cavity
neuroepithelium - epithelium associated with special sense organs and containing sensory nerve endings
epithelial cell - one of the closely packed cells forming the epithelium
animal tissue - the tissue in the bodies of animals
decidua - the epithelial tissue of the endometrium
epithelium[ˌɛpɪˈθiːlɪəm] n → epitelio
n. L. epitelio, tejido que cubre las superficies expuestas e interiores del cuerpo;
ciliated ___ → ___ ciliado;
columnar ___ → ___ columnar;
cuboidal ___ → ___ cuboidal;
squamous ___ → ___ escamoso;
stratified ___ → ___ estratificado;
transitional ___ → ___ de transición, transicional.