It is a force of attraction between two object in universe by virtue of their masses

Gravitation is the force of attraction between any two bodies in this universe . Gravitation or gravity is everywhere, it is the force that keeps us stuck to the ground, drives the planets around the sun and the same force that pulls you down a slide.

Gravitation is the force of attraction between two objects in the universe. Gravitation may be the attraction of objects by the earth. This force is proportional to the product of masses of the objects and inversely proportional to the square of the distance between them. It is independent of medium.

What a name you have selected virus
All objects in universe attract each other with some force. That force is called gravitation.

The mutual force of attraction between two bodies due to their masses ,this term is known as gravitaion
The force of attraction between any two bodies in the universe separated at a distance is called gravity or gravitational force.\xa0The gravitational force of attraction due to the earth on the objects is called gravity (equal to the weight of the object).