| clause | clause |
| clause in the articles | disposition statutaire |
| Clausius-Clapeyron relation | Formule de Clapeyron |
| Clausius-Mossotti relation | Formule de Clausius-Mossotti |
| claustrophobe | claustrophobe |
| claustrophobia | claustrophobie |
| claustrophobic | claustrophobe |
| Clavaleyres | Clavaleyres |
| clavichord | clavicorde |
| clavicle | clavicule |
| clavicular | claviculaire |
| Claviere | Claviere |
| claw | serre |
| clay | argile |
| Clay animation | Animation de pâte à modeler |
| Clay County | Comté de Clay |
| Clay Mathematics Institute | Institut de mathématiques de Clay |
| Clay minerals | Argile |
| clay pigeon | pigeon d'argile |
| clay pigeon shooting | ball-trap |
| Clay Regazzoni | Clay Regazzoni |
| clayey | argileux |
| claystone | argilite |
| Clayton Anderson | Clayton Anderson |
| Clayton Antitrust Act | Clayton Antitrust Act |
| Clayton County | Comté de Clayton |
| Claytronics | Claytronics |
| clean | pur |
| clean air area | zone d'air pur |
| clean air car | voiture propre |
| clean and jerk | épaulé-jeté |
| clean as a whistle | blanc comme neige |
| Clean Development Mechanism | Mécanisme de développement propre |
| Clean methods | Methode de deconvolution |
| clean off | expédier |
| clean out | vider |
| clean someone's clock | battre à plate couture |
| clean technology | technologie propre |
| clean up | réhabiliter |
| clean-cut | net |
| clean-shaven | rasé de près |
| cleaner | femme de ménage |
| cleaner's | teinturerie |
| cleaning | nettoyage |
| cleaning lady | femme de ménage |
| cleaning out | nettoyage à fond |
| cleaning up | nettoyage |
| cleaning woman | femme de ménage |
| cleanliness | netteté |
| cleanness | netteté |
| cleanroom | salle blanche |
| cleanse | purifier |
| cleanser | produit de nettoyage |
| cleansing | purgatif |
| cleansing department | service de nettoiement |
| Cleanthes | Cléanthe |
| cleanup | nettoyage |
| clear | régler |
| clear away | enlever |
| Clear Channel Communications | Clear Channel Communications |
| clear lacquer | laque |
| Clear Lake | Clear Lake |
| clear land | déboiser |
| clear off | débarrasser |
| clear out | filer |
| clear through customs | dédouaner |
| clear up | résoudre |
| clear-cut | net |
| clear-headed | avisé |
| clearance | espace |
| clearance sale | vente de soldes |
| Clearchus | Cléarque |
| Clearchus of Soli | Cléarque de Soles |
| Clearchus of Sparta | Cléarque |
| clearcutting | coupe à blanc |
| clearing | clairière |
| clearing house | chambre de compensation |
| clearing sludge | boue de curage |
| clearinghouse | chambre de compensation |
| clearly | explicitement |
| clearly outlined | précis |
| clearness | clarté |
| cleartext | texte en clair |
| ClearType | ClearType |
| Clearwater | Clearwater |
