PCMCIA - definition and synonyms

noun [countable] computing 

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/ˌpiː siː ˌem ˌsiː aɪ ˈeɪ/
singularPCMCIA
pluralPCMCIAs
  1. Personal Computer Memory Card Interface Adapter: a very small expansion board (=electronic part) for computers, especially laptops (=small computers that can be carried around)