ORM stands Object Relational Mapping

It is a technique for querying and manipulating data from the database. The mapping technique acts as a bridge between objects of classes and database tables.

Example from StackOverFlow:

So let's say you have this object.

class Employee:

  def __init__( self, name ): 
      self.__name = name

  def getName( self ):
       return self.__name

and the table:

create table employee(
  name varcar(10),
)

Using an ORM framework would allow you to map that object with a db record automatically and write something like:

emp = Employee("Ryan")

orm.save( emp )

And have the employee inserted into the DB.