transtainer noun2 •A mobile gantry crane used for stacking intermodal containers within the stacking areas of a container terminal.The transtainers (system A) are all assumed to have a 62ft span and to straddle a five wide stack. — 1987 •(historical) A specialized container used to transport and protect large guided missiles.Transtainers (transporter-containers) for SM-68 [Titan ICBM] are of novel design, with a structure of aluminium alloy. — 1957 formstranstainers
