mass

mass

noun \ˈmas\

Definition of MASS

1

: the property of a body that is a measure of its inertia, that is commonly taken as a measure of the amount of material it contains, that causes it to have weight in a gravitational field, and that along with length and time constitutes one of the fundamental quantities on which all physical measurements are based

2

: a homogeneous pasty mixture compounded for making pills, lozenges, and plasters <blue mass>