(architecture) A protective moulding over a door or window that allows rain to drip away from the structure. / A water filter in which impurities are removed by running water through a porous stone.

A sympathomimetic drug that acts as a stimulant in the central nervous system.

The systematic recitation of an event or series of events. / That which is narrated. / A representation of an event or story in a way to promote a certain point of view.

(of RNA) Shorter than polysomal