adapter, adaptor (device that physically adapts one system or device to another) / adapter, adaptor (device that provides compatibility between different systems or protocols, such as a software adaptor) / adapter, adaptor (convertor device, for example for electrical devices and plugs) / adapter, adaptor (telecommunications device that functions as a modem or other signal converter) / adapter, adaptor (genetics: a small DNA fragment used to link other sequences) / adapter, adaptor (molecular biology: a molecule facilitating the connection between entities)