Complex sentence: The term "cloudburst" arose from the notion that clouds were akin to water-balloons and could burst, resulting in rapid precipitation; though this idea has since been disproven, the term remains in use.
Split into simpler sentences: The term "cloudburst" arose from the notion that clouds were akin to water balloons and could burst, resulting in rapid precipitation. Though this idea has since been disproven, the term remains in use.