Some drug makers and other companies put three-dimensional images called holograms on their products as a security device.

VOA: special.2010.03.01

The same journal also published a report in July on an experimental device called the CellScope.

VOA: special.2009.08.03

The device used to weave together warp and weft threads is called a loom.

VOA: special.2009.11.04

The team designed a device it called a choice chamber.

VOA: special.2010.08.10

But the acquisition of radioactive material for a so-called 'dirty bomb,' which is radioactive material that is dispersed with a conventional explosive device, that is not that challenging.

VOA: standard.2009.05.01