cyanates, 363 cyanides, 363 cyanine dyes, 364 cyanogenic, 364 cyanohydrins, 364 cybotactic region, 365 cycles per second, 365 cyclic acid anhydrides (cyclic anhydrides), 365 cyclitols, 365 cyclization, 366 cyclo-, 366 cycloaddition, 367 cycloalkanes, 369 cycloalkyl groups, 369 cyclodextrins, 369 cycloelimination, 370 cyclohexadienyl cations, 370 cyclone (collector) in atmospheric chemistry , 370 cyclophanes, 370 cyclopolymerization, 371 cyclosilazanes, 371 cyclosiloxanes, 371 cyclotron, 372 cytochrome P450, 372 cytochromes, 372 Δ (delta), Λ (lambda), 372