(film) A cinematic technique in which live action is filmed in front of a screen on which the background action or a background scene is projected. / tomographic reconstruction

platform bed

(organic chemistry) Any of very many isomers of the saturated aliphatic hydrocarbon having twenty-seven carbon atoms, but especially n-heptacosane (CH₃(CH₂)₂₅CH₃)

plural of Piekarski