(aviation) The deployment of an aircraft's landing gear by the use of gravity.

A small, medicated tablet intended to be dissolved slowly in the mouth to relieve coughing symptoms temporarily.

(transitive) To drain the surface of (a field, farm, etc.).

present participle of top-drain

plural of Rupert's drop

A glass bead created by dripping molten glass into cold water so it solidifies into a tadpole with a very tough head but a long fragile tail which, if damaged, causes the bead to disintegrate explosively.

(computer hardware) A drive that reads optical media.

plural of dry nurse

A nurse who attends and feeds a child by hand, distinguished from a wet nurse, who suckles it.

Alternative form of drag rope