something you tell in your own words
A summary is: the most important information of every paragraph - join that into a new paragraph and then take the most important information of the new paragraph you made putting the essential...
The word 'hydrodynamics' means study of fluids in motion
SUMMARIZE : to make a summary, or general gist of a report or communication; to "sum up" or list the key items of a detailed listing or communication.
a dam