Search the Dictionary

Of or pertaining to epithelium; as, epithelial cells; epithelial cancer.

Derived from epithelial cells and destined to become a part of the muscular system; -- applied to structural elements in certain embryonic forms.

Situated under the epithelium.

e claws of a crab. The term it now restricted to such a growth made up of aggregations of epithelial cells, either without support or embedded in the meshes of a trabecular framework.

A nucleated cell having an envelope or cell wall, as a red blood corpuscle or an epithelial cell; a cell concerned in growth.

The epithelial lining of the ventricles of the brain and the canal of the spinal cord; endyma; ependymis.

A malignant growth containing epithelial cells; -- called also epithelial cancer.

mphatics, serous cavities, etc. It often includes the epidermis (i. e., keratin-producing epithelial cells), and it is sometimes restricted to the alimentary canal, the glands and their appendages, -- the term endothelium being applied to the lining membrane of the blood vessels, lymphatics, and serous cavities.…

in the pigment-bearing cells of the skin (particularly in the skin of the negro), in the epithelial cells of the external layer of the retina (then called fuscin), in the outer layer of the choroid, and elsewhere. It is supposed to be derived from the decomposition of hemoglobin.

Epithelial mesoderm; a layer of cuboidal epithelium cells, formed from a portion of the mesoderm during the differetiation of the germ layers. It constitutes the boundary of the coelum.

A substance which is formed in mucous epithelial cells, and gives rise to mucin.

Scott. Pigment cell (Physiol.), a small cell containing coloring matter, as the pigmented epithelial cells of the choroid and iris, or the pigmented connective tissue cells in the skin of fishes, reptiles, etc.

Colored; specifically (Biol.), filled or imbued with pigment; as, pigmented epithelial cells; pigmented granules.

up and destroyed by the ordinary processes of life; as, the continual regeneration of the epithelial cells of the body, or the regeneration of the contractile substance of muscle.

r, an end bulb or tactile corpuscle, etc. -- Sense organule (Anat.), one of the modified epithelial cells in or near which the fibers of the sensory nerves terminate.

sting of, scales; resembling a scale; scaly; as, the squamose cones of the pine; squamous epithelial cells; the squamous portion of the temporal bone, which is so called from a fancied resemblance to a scale.

a specialized function, of which ordinary animals and plants are composed; a texture; as, epithelial tissue; connective tissue.