- The upper boundary of the ionosphere of a planet, comet, or other celestial object.More example sentences
- The pressure distribution within the magnetic barrier just outside the ionopause of Venus is shown here to be similar to expected solar wind pressure variation.
- The dayside ionopause and ionosphere are observed to respond dramatically to solar wind pressure variations
More definitions of ionopauseDefinition of ionopause in:
- The British & World English dictionary