C+L stands for Cytokines and Lipopolysaccharides
C+ stands for C Augmented (music)
C* stands for Critical Concentration (concentration at which intermolecular interaction occurs)
C(t) stands for Concentration as a function of Time
C&WC stands for Charleston & Western Carolina (railroad)
C(_)P stands for Christians United for Prosperity
C&WM stands for Connecticut & Western Massachusetts Mensa C&WM stands for Chicago & West Michigan Railroad
C- stands for C Minor (music)
C(D)IL stands for Channel De-Interleaver/De-Interleaving (also seen as CDIL)
C(AA)B stands for Combat (Air Artillery) B