[mem-breyn] /ˈmɛm breɪn/
Anatomy. a thin, pliable sheet or layer of animal or vegetable tissue, serving to line an organ, connect parts, etc.
Cell Biology. the thin, limiting covering of a cell or cell part.
any thin pliable sheet of material
a pliable sheetlike usually fibrous tissue that covers, lines, or connects plant and animal organs or cells
(biology) a double layer of lipid, containing some proteins, that surrounds biological cells and some of their internal structures
(physics) a two-dimensional entity postulated as a fundamental constituent of matter in superstring theories of particle physics
a skin of parchment forming part of a roll
early 15c., “thin layer of skin or tissue,” a term in anatomy, from Latin membrana “a skin, membrane; parchment (skin prepared for writing),” from membrum “limb, member of the body” (see member). The etymological sense is “that which covers the members of the body.”
membrane mem·brane (měm’brān’)
noun 1. a bone that develops from membranous tissue. noun 1. any bone that develops within membranous tissue, such as the clavicle and bones of the skull, without cartilage formation Compare cartilage bone membrane bone n. A bone developed within the membrane of a connective tissue.
- Membrane-coating granule
membrane-coating granule n. See keratinosome.
- Membrane expansion theory
membrane expansion theory n. The theory that adsorption of anesthetics into membranes alters the membrane function to produce anesthesia.
- Membrane potential
membrane potential n. The potential inside a cell membrane measured relative to the fluid just outside; it is negative under resting conditions and becomes positive during an action potential.