(informal) A coating of concrete on a murdered body in order to dispose of the body underwater; associated with criminal gangs.

plural of concrete overcoat

plural of concrete-head

(colloquial, humorous) A stupid person; sometimes one who is being stubborn to the point of stupidity. / (management, slang) A person who is stuck in their ways; one who is unwilling to try new ideas.

A number used in application to a thing. E.g. "11" is abstract but "11 men" is concrete.

plural of concrete desert

Synonym of concrete jungle

(organic chemistry, obsolete) etherin

(construction) A rectangular concrete block of a standard size used in construction.

plural of concrete masonry unit