Definition of "bulk"
Size, mass or volume.
The major part of something.
The result of water retained by fibre.
(transport) Unpackaged goods when transported in large volumes, e.g. coal, ore or grain.
Excess body mass, especially muscle.
A hypothetical higher-dimensional space within which our own four-dimensional universe may exist.
Being large in size, mass or volume.
To be, or appear to be, massive.
To grow in size; to swell or expand.