(biology) A screening technique for the rapid detection of recombinant bacteria in vector-based molecular cloning experiments. DNA of interest is ligated into a vector, which is then inserted into a host cell; these are grown in the presence of X-gal. Cells transformed with vectors containing recombinant DNA will produce white colonies; cells transformed with non-recombinant plasmids (i.e. only the vector) grow into blue colonies.

(computing, informal) An error screen displayed by some operating systems, especially Microsoft Windows, after encountering an unrecoverable error which causes the system to shut down.

(nautical) A circular disc of plate glass, set into the screen of a ship's bridge and spun at high speed by an electric motor in heavy rain or snow; it offers a clear view forward.

A method of reproducing coloured artwork using a cut stencil attached to a stretched, fine-meshed silk screen

plural of choir screen

plural of skeleton screen

plural of hand screen

plural of organ screen

plural of draught screen

plural of hand-screen