Slate is a metamorphic rock that is formed from the sedimentary rock mudstone. Granulite is a metamorphic rock that is formed from the igneous rock basalt. Learn about sedimentary rocks, igneous rocks, other rocks and minerals or fossils. Make a fossil cast or check out our rock sorting lesson plan.
The definition of ongoing is something that is still going on at the present time and that is going to continue. An example of something that would be described as ongoing is an investigation that is still underway about a crime . YourDictionary definition and usage example.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  persistent, relentless, unrelenting(adj) never-ceasing. the relentless beat of the drums. 2  haunting, persistent(adj) continually recurring to the mind. haunting memories; the cathedral organ and the distant voices have a haunting beauty- Claudia Cassidy.