A proposed space settlement consisting of two cylinders that rotate to provide artificial gravity via centrifugal force.

A laboratory tube used in colorimetric analysis.

In a variable-expansion central-valve steam engine, a small auxiliary engine for automatically adjusting the steam distribution to the load on the main engine.

plural of O'Neill cylinder

plural of cylinder mower

Synonym of reel mower

(biology, dated) An axon.

plural of axis cylinder

plural of graduated cylinder

plural of Nessler cylinder