| Clonmel | Clonmel |
| Clontarf | Clontarf |
| Clonus | Clonus |
| cloquear | glousser |
| cloqueo | gloussement |
| cloración | chloration |
| Cloracné | Acné chlorique |
| cloral | chloral |
| clorato | chlorate |
| Clorfenamina | Chlophéniramine |
| Clorhexidina | Chlorhexidine |
| clorinar | chlorer |
| Clorinda | Clorinda |
| Cloris | Chloris |
| cloro | chlore |
| cloro- | chloro- |
| clorofenoles | chlorophénol |
| clorofila | chlorophylle |
| clorofluorocarbonos | chlorofluorocarbure |
| clorofluorohidrocarburos | hydrocarbures chlorofluorés |
| cloroformizar | chloroformer |
| cloroformo | chloroforme |
| clorogénico | chlorogénique |
| cloroplasto | chloroplaste |
| clorosis | chlorose |
| Clorpirifos | Chlorpyriphos-éthyl |
| Clorpromazina | Chlorpromazine |
| cloruro | chlorure |
| Cloruro de calcio | Chlorure de calcium |
| cloruro de etanoilo | chlorure d'éthanoyle |
| Cloruro de metileno | Dichlorométhane |
| Cloruro de potasio | Chlorure de potassium |
| cloruro de sodio | chlorure de sodium |
| Cloruro de tionilo | Chlorure de thionyle |
| Cloruro ferroso | Chlorure de fer |
| Cloruro férrico | Chlorure de fer |
| Cloruro mercurioso | Calomel |
| Cloruro mercúrico | Calomel |
| Cloruro sódico | Chlorure de sodium |
| cloruros | chlorure |
| CLOS | Common Lisp Object System |
| Close Air Support | Close air support |
| Close Encounters of the Third Kind | Rencontres du troisième type |
| Close to Home | Juste cause |
| Closeau | Clouseau |
| Clostridium | Clostridium |
| Clostridium tetani | Clostridium tetani |
| Clotario I | Clotaire Ier |
| Clotario II | Clotaire II |
| Clotario III | Clotaire III |
| Clotario IV | Clotaire IV |
| Clotilde | Clotilde |
| Clotilde de Francia | Clotilde de France |
| Cloto | Clotho |
| Clotoide | Clothoïde |
