What does polygenetic stratovolcano mean?

Answer 1

A polygenetic volcano is one that has formed through multiple periods of activity. A stratovolcano is a steep-sloped, often tall volcanoe composed of layers of ash, pumice, and cooled lava flows. Stratovolcanoes are capable of producing large explosive eruptions.

Answer 2

A polygenetic stratovolcano is a volcano that has been built up through multiple eruptions over a long period of time. These volcanoes are characterized by their steep-sided cones formed from alternating layers of ash, lava, and volcanic rocks. They can remain active for thousands to millions of years.