| 释义 | C4
 C4n  (Firearms, Gunnery, Ordnance & Artillery) US a type of plastic explosive  [C20: from C(omposition) 4]C4
 C4CytopathologyA category of cytology interpretation which corresponds to “suspicious of malignancy”, based on the NHSBSP (UK) guidelines for cytology reporting of aspiration cytology of breast lesions.
 Military
 A plastic explosive which is one-third more powerful by weight than TNT. When C4 is detonated, the explosive is converted into gas which creates a pressure (shock) wave that demolishes the target by cutting, breaching or cratering.
 complement deficiencyA state in which any of the complement proteins is subnormal  Complement deficiencies–associated disorders  C1  C1r SLE, renal disease, repeated infections  C1s SLE  C2 SLE, vasculitis, membranoproliferative glomerulonephritis, dermatomyositis  C3 Repeated infections  C4 SLE  C5 SLE, gonococcal disease  C6 Relapsing meningococcal meningitis, gonococcal infection  C7 Raynaud's disease, chronic renal disease, gonococcal infection  C8 SLE, gonococcal infectionC4
 | Acronym | Definition | 
|---|
 | C4➣Command, Control, Communications, and Computers (US DoD) |  | C4➣Composition 4 (explosive) |  | C4➣Channel 4 (UK Terrestrial Television) |  | C4➣Carrera 4 (Porsche 911 model) |  | C4➣Butane |  | C4➣Middle C (piano keyboard) |  | C4➣Combat Casualty Care Course |  | C4➣Schedule IV Controlled Substance (USA) |  | C4➣Chaos Computer Club Cologne (German computer club in Cologne member of the CCC family) |  | C4➣Center for Clouds, Chemistry and Climate |  | C4➣Fourth-Generation Corvette (Chevrolet) |  | C4➣Trident I Missile |  | C4➣Controlled Collapse Chip Connect |  | C4➣Controlled Collapsed Chip Connection |  | C4➣Call Centre Consulting Connection (Canada) |  | C4➣Central CONUS Control Center (GPS) |  | C4➣Care, Competence, Control and Communications (Teksystems project management methodology) | 
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