1) Developmental neuroscience 2) Membrane 3) Tissue layer 
Ependyma is the thin epithelium-like lining of the ventricular system of the brain and the central canal of the spinal cord. Ependyma is one of the four types of neuroglia in the central nervous system (CNS). It is involved in the production of cerebrospinal fluid (CSF). ==Ependymal Cells== The ependyma is made up of ependymal cells, ependymocytes...
• (n.) The epithelial lining of the ventricles of the brain and the canal of the spinal cord; endyma; ependymis.
The membrane lining the cerebral ventricles of the brain and central canal of the spinal cord.
(from the article `photoreception`) ...The Hesse cells, shown experimentally to be photoreceptor cells, have typical microvillar rhabdomeres with no cilia. Two other types of cells that ...
A thin membrane that lines the fluid-filled spaces in the brain and spinal cord. It is made up of a type of glial cell called an ependymal cell.
(ә-pen´dә-mә) the membrane lining the cerebral ventricles and the central canal of the spine. adj., epen´dymal., adj.
Ep·en'dy·ma noun [ New Latin , from Greek ... an upper garment; 
Type: Term Pronunciation: ĕ-pen′di-mă Definitions: 1. The cellular membrane lining the central canal of the spinal cord and the brain ventricles. Synonyms: endyma
[n] - thin epithelial membrane lining the ventricles of the brain and the spinal cord canal
ependyma 1. The cellular membrane lining the central canal of the spinal cord and the brain ventricles. 2. A membrane lining the canal of the spinal cord and the ventricles of the brain.
noun thin epithelial membrane lining the ventricles of the brain and the spinal cord canal
Greek = an upper garment. It may refer to a vest or singlet, i.e. an under-garment, hence, the lining membrane of the ventricles of the brain and central canal of the spinal cord.
a membrane lining the canal of the spinal cord and the ventricles of the brain.