What does SQUID stand for?

Semi-conducting Quantam Interference Device (SAUS)

Semiconducting Quantum Interference Device (MCD)

Sperry Quick Updating of Internal Documentation (IEEE)

Standard Quick Release Universal Interface Device (SPST)

Submerged Quick Intervention Device - Human-powered submarine

Superconducting QUantum Interface Device

Superconducting Quantum Interference Detector - or Device - For study of magnetic fields

Superconducting Quantum Interference Device - Physics

Superconducting Quantum Interferometer (or Interferrometric) Device (SAUS)