| cloroplasto | Chloroplast |
| Cloropreno | Chloropren |
| clorosis | Chlorose |
| Clorpirifos | Chlorpyrifos |
| Clorpromazina | Chlorpromazin |
| cloruro | Chlorid |
| Cloruro amónico | Ammoniumchlorid |
| Cloruro de calcio | Calciumchlorid |
| cloruro de etanoilo | Essigsäurechlorid |
| Cloruro de hidrógeno | Chlorwasserstoff |
| Cloruro de litio | Lithiumchlorid |
| Cloruro de metileno | Dichlormethan |
| Cloruro de potasio | Kaliumchlorid |
| cloruro de sodio | Natriumchlorid |
| Cloruro de tionilo | Thionylchlorid |
| Cloruro de vinilo | Vinylchlorid |
| Cloruro ferroso | Eisen-chlorid |
| Cloruro férrico | Eisen-chlorid |
| Cloruro mercurioso | Quecksilber-chlorid |
| Cloruro mercúrico | Quecksilber-chlorid |
| Cloruro sódico | Natriumchlorid |
| cloruros | Chlorid |
| CLOS | Common Lisp Object System |
| Close Air Support | Luftnahunterstützung |
| Close Encounters of the Third Kind | Unheimliche Begegnung der dritten Art |
| Close to Home | Close to Home |
| Closet | Wandschrank |
| Clostridium | Clostridien |
| Clostridium tetani | Clostridium tetani |
| Clotilde de Francia | Clothilde von Frankreich |
| Cloto | Klotho |
| Clotoide | Klothoide |
| Cloud Strife | Cloud Strife |
| Clover | Clover |
| clown | Clown |
| Clozapina | Clozapin |
| club | Verein |
| Club Alpino | Liste von Alpenvereinen |
| Club América | Club América |
| Club Athlétique Brive-Corrèze | CA Brive |
| Club Atlètic Terrassa | Atlètic Terrassa |
| Club Atlético Belgrano | Club Atlético Belgrano |
| Club Atlético Boca Juniors | Boca Juniors |
| Club Atlético Colón | Colón |
| Club Atlético de Madrid | Atlético Madrid |
| Club Atlético de San Isidro | Club Atlético San Isidro |
| Club Atlético Gimnasia y Esgrima | Gimnasia y Esgrima de La Plata |
| Club Atlético Independiente | Independiente |
