Fenestra
Small opening or pore / From Wikipedia, the free encyclopedia
For the genus of grasshoppers, see Fenestra (grasshopper). For other uses, see Fenestration (disambiguation).
A fenestra (fenestration; pl.: fenestrae or fenestrations) is any small opening or pore, commonly used as a term in the biological sciences.[1] It is the Latin word for "window", and is used in various fields to describe a pore in an anatomical structure.