Crossword clues for Systems. 5 letters:METROD.C. transportation systemEMAILModern communication systemRADARAirport systemLORANSiting systemMACROEconomics prefix relating to the study of large systemsBOOLELogical system inventorSICKOControversial 2007 documentary about the American health care systemAVOIRWt. systemLINUXOpen-source operating systemMETROParis subway systemTCELLImmune system structure, brieflySEALA___-Meal (vacuum food storage system)ETHOSValue systemTCELLImmune system componentTELEXObsolescent communication systemALTAIMountain system of AsiaSONAREcholocation systemLITERMetric system measureRADAREcholocation systemBARDSMetric system users?CREDOPersonal belief systemDRONEBit of modern technology banned from general use in the US National Park systemLORANGlobal positioning system used on WWII shipsTENETPart of a 15-Across systemLORANEarly seagoing wayfinding systemKAZAAOld file-sharing system that was basically 50/50 whether a file was a song or a crippling virusHONORIt's good to follow a system of itLORANRadio-based navigation systemITSINCall that may be confirmed by the Hawk-Eye systemLINUXOperating system choiceTAEBOExercise system with lots of kickingSERVOElectronic control system, for shortATARIVideo game system pioneerXYLEMPlant circulatory systemNOKIAIts phones ran on the Symbian operating systemAEGISMythologically-named U.S. ballistic missile defense systemSICKOMichael Moore indictment of the United States health care systemNUTRICommercial prefix with bullet and systemRADIXBase of a number systemTCELLImmune system partENEMACertain irrigation systemGLYPHSymbol in an old writing systemLINACMachine in the Large Hadron Collider systemTSLOTPart of a bandsaw's support systemCASTERigid social systemATARIReleaser of the VCS game system in 2020SONARSub tracking systemSONARUndersea detection systemDENEBStar whose solar system Silver Surfer hails from, in the Marvel UniverseGREGGSystem of shorthand