monolith , n :
(also attributively) A large, single block of stone used in architecture and sculpture, especially one carved into a monument in ancient times. (also attributively) Anything massive, uniform, and unmovable, especially a towering and impersonal cultural, political, or social organization or structure. (chemistry) A substrate having many tiny channels that is cast as a single piece, which is used as a stationary phase for chromatography, as a catalytic surface, etc. (Britain, horticulture) A dead tree whose height and size have been reduced by breaking off or cutting its branches.