Main Entry:

grav·i·ty

Pronunciation:

\ˈgra-və-tē\

Function:

noun

Inflected Form(s):

plural grav·i·ties

Usage:

often attributive

Etymology:

Middle French or Latin; Middle French gravité, from Latin gravitat-, gravitas, from gravis

Date:

1505

1 a: dignity or sobriety of bearing b: importance, significance ; especially : seriousness c: a serious situation or problem2: weight3 a (1): the gravitational attraction of the mass of the earth, the moon, or a planet for bodies at or near its surface (2): a fundamental physical force that is responsible for interactions which occur because of mass between particles, between aggregations of matter (as stars and planets), and between particles (as photons) and aggregations of matter, that is 10^-39 times the strength of the strong force, and that extends over infinite distances but is dominant over macroscopic distances especially between aggregations of matter —called also gravitation gravitational force — compare electromagnetism 2a, strong force, weak force b: acceleration of gravity c: specific gravity