2
a
: one that condenses or consolidates
b
: one that makes smaller or less: such as
(3)
: a hydraulic device that lowers pressure and increases movement used to transmit the load from the hydraulic support of the lower shackle to the lever weighing apparatus in some kinds of heavy testing machines
3
: one that weakens or dilutes: such as
a
: reducing agent
specifically
: one used in photographic development
b
: a chemical solution for reducing the density of a silver image in photography
e
: a worker who adds thinners to paint or varnish to obtain the proper consistency
4
: one that processes especially for commercial use
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Merriam-Webster unabridged
Share