Pronunciation: (skwid),[key] —n., —pl.(esp. collectively)squid,(esp. referring to two or more kinds or species)squids. any of several ten-armed cephalopods, as of the genera Loligo and Ommastrephes, having a slender body and a pair of rounded or triangular caudal fins and varying in length from 4–6 in. (10–15 cm) to 60–80 ft. (18–24 m).
Pronunciation: (skwid),[key] —n. superconducting quantum interference device: a device that senses minute changes in magnetic fields, used to indicate neural activity in the brain.