ionogram means A display of the data produced by an ionosonde; a graph of the virtual height of the ionosphere plotted against frequency. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From iono- + -gram.
noun
- A display of the data produced by an ionosonde; a graph of the virtual height of the ionosphere plotted against frequency.“Data from ionograms may be used to measure changes in the Earth's ionosphere due to space weather events.”