A felt-tipped pen.

A felt-tip pen.

A mixture of refractory materials used in casting metal. / A semi-liquid substance made of cornstarch and water, used in children's experiments.

Magic derived from evil forces, as distinct from good or benign forces; or magic performed with the intention of doing harm.

A wand, usually made of wood, that is used to perform magic. / (figuratively) A means which will effect an instant solution.

plural of magic bullet

(physics, of a transuranic nuclide) Having filled shells of both protons and neutrons and therefore having extra stability and a longer half-life than normal.

plural of magic sword

A sword, usually from mythology or fiction, imbued with magical power to increase its strength or grant it other supernatural qualities.

(idiomatic) A simple remedy for a difficult or complex problem, especially a cure for a disease.