another name for sky wave
- Ionotropic receptor
/aɪˌɒnəˈtrɒpɪk/ noun 1. (physiol) a receptor that functions directly by opening ion channels that enable specific ions to stream in an out of the cell Compare metabotropic receptor
/ˌaɪəˈnɒtrəpɪ/ noun 1. (chem) the reversible interconversion of a pair of organic isomers as a result of the migration of an ionic part of the molecule
noun 1. Rocketry. a projected type of propulsion for vehicles in outer space, the exhaust consisting of positive ions and negative electrons repelled from the vehicle by electrostatic forces, resulting in a very high exhaust velocity.
noun, Rocketry. 1. a rocket or rocket engine using ion propulsion. noun 1. a rocket propelled by an ion engine