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Meaning of membrane
A thin layer of tissue that covers or lines an organ or cell.
Etymology of membrane
The word "membrane" comes from the Latin "membrana", meaning "skin" or "parchment", which is derived from the verb "membrare", meaning "to skin" or "to cover with a skin".
The term has been used in English since the 15th century to refer to a thin layer of tissue or a semi-permeable layer.
Synonyms
film
layer
sheet
tissue
skin
coating
cover
veil
barrier
partition
diaphragm
septum
wall
lining
integument
pellicle
lamella
stratum
membrane
meninges
peritoneum
pleura
eardrum
tympanum
semipermeable barrier
selectively permeable layer
cellular barrier
thin layer
delicate film
gossamer
diaphanous layer
translucent sheet
permeable sheet
porous layer
fragile film
brittle layer
crystalline layer
fibrous sheet
mucous membrane
epithelial layer
connective tissue
basement membrane
nuclear membrane
cell membrane
plasma membrane
lipid bilayer
phospholipid layer
Definitions
- A thin layer of tissue that covers or lines an organ or cell, and serves as a barrier or filter, regulating the flow of materials in and out.
- A thin, flexible layer of material that is semi-permeable, allowing certain substances to pass through while keeping others out.
- In biology, a membrane can refer to the plasma membrane, which is the outermost layer of a cell, or to other types of membranes, such as the nuclear membrane or the mitochondrial membrane.
Usage Examples
- The cell membrane is a semi-permeable layer that regulates the flow of materials in and out of the cell.
- The mucous membrane in the nose helps to filter out dust and other particles from the air we breathe.
- The membrane of the eardrum is very thin and delicate, and can be easily damaged by loud noises.