| cyclic | cyclisch |
| Cyclic adenosine monophosphate | Cyclisch adenosinemonofosfaat |
| Cyclic group | Cyclische groep |
| Cyclic voltammetry | Cyclovoltammetrie |
| cyclical | cyclisch |
| Cyclin | Cycline |
| cycling | wielrennen |
| Cycling at the Summer Olympics | Wielrennen op de Olympische Zomerspelen |
| Cycling team | Wielerploeg |
| cyclist | coureur |
| Cyclo-cross | Veldrijden |
| Cycloaddition | Cycloadditie |
| Cyclocomputer | Fietscomputer |
| Cycloconverter | Cycloconverter |
| cyclone | wervelstorm |
| Cyclone Gonu | Gonu |
| Cyclone Sidr | Sidr |
| cyclonic | cyclonaal |
| Cyclonic separation | Cyclone |
| Cyclonite | Cyclotrimethyleentrinitramine |
| Cyclop | Cycloop |
| Cyclopes | Cycloop |
| cyclopropane | cyclopropaan |
| cyclopropene | cyclopropeen |
| Cyclops | Cycloop |
| cyclostyle | cyclostyleren |
| cyclotron | cyclotron |
| Cyclotron radiation | Cyclotronstraling |
| Cycnus | Zwanen |
| Cydonia | Cydonia |
| Cydonia Mensae | Cydonia |
| cygnet | jonge zwaan |
| Cygninae | Zwanen |
| Cygwin | Cygwin |
| CYK algorithm | CYK-algoritme |
| cylinder | rol |
| Cylinder capacity | Cilinderinhoud |
| cylinder head | cilinderkop |
| Cylinder seal | Rolzegel |
| cylindrical | cilindrisch |
| Cylindrical coordinate system | Cilindercoördinaten |
| Cylindrophiidae | Pijpslangen |
| Cyllene | Cyllene |
| cymbal | cimbaal |
| Cymbalaria | Muurleeuwenbek |
| Cymbalom | Cymbalom |
| Cymbalum | Cymbalom |
| Cymbeline | Cymbeline |
| Cymbopogon | Citroengras |
| Cymbopogon citratus | Citroengras |
| Cymburgis of Masovia | Cymburgis van Mazovië |
| Cymodoceaceae | Cymodoceaceae |
| Cynan | Conan |
| Cyndi Lauper | Cyndi Lauper |
| Cynegils of Wessex | Cynegils |
| Cynewulf of Wessex | Cynewulf van Wessex |
| cynic | wrang |
| cynical | wrang |
| cynicism | cynisme |
| Cynipoidea | Galwespen |
| Cynognathus | Cynognathus |
| Cynosura | Cynosura |
| Cynthia | Artemis |
| Cynthia Lennon | Cynthia Powell |
| Cynthia Nixon | Cynthia Nixon |
| Cynthia Rothrock | Cynthia Rothrock |
| Cynthus | Kynthos |
| Cyparissus | Cupressus |
| Cyperaceae | Cypergrassenfamilie |
| Cyperales | Cyperales |
| Cyperus alternifolius | Cyperus alternifolius |
| Cyperus esculentus | Knolcyperus |
| Cyperus papyrus | Papyrusriet |
| cypres | cipres |
| cypress | cipres |
| Cypress Hill | Cypress Hill |
