exhaust manifold - a manifold that receives exhaust gases from the cylinders and conducts them to the exhaust pipe

inlet manifold - manifold that carries vaporized fuel from the carburetor to the inlet valves of the cylinders

intake manifold - a manifold consisting of a pipe to carry fuel to each cylinder in an internal-combustion engine

pipage, pipe, piping - a long tube made of metal or plastic that is used to carry water or oil or gas etc.

paper - a material made of cellulose pulp derived mainly from wood or rags or certain grasses

mathematical space, topological space - (mathematics) any set of points that satisfy a set of postulates of some kind; "assume that the topological space is finite dimensional"

re-create, copy - make a replica of; "copy that drawing"; "re-create a picture by Rembrandt"

increase - make bigger or more; "The boss finally increased her salary"; "The university increased the number of students it admitted"

double, duplicate - increase twofold; "The population doubled within 50 years"

triple, treble - increase threefold; "Triple your income!"

quadruple - increase fourfold; "His stock earning quadrupled"

quintuple - increase fivefold; "The population of China quintupled"

proliferate - cause to grow or increase rapidly; "We must not proliferate nuclear arms"

multiple - having or involving or consisting of more than one part or entity or individual; "multiple birth"; "multiple ownership"; "made multiple copies of the speech"; "his multiple achievements in public life"; "her multiple personalities"; "a pineapple is a multiple fruit"