| clorofila | clorofila |
| clorofluorocarbonos | clorofluorcarbonetos |
| clorofluorohidrocarburos | clorofluorhidrocarbonetos halogenados |
| cloroformo | clorofórmio |
| clorogénico | clorogênico |
| cloroplasto | cloroplasto |
| clorosis | clorose |
| Clorpromazina | Clorpromazina |
| cloruro | cloreto |
| Cloruro amónico | Cloreto de Amónio |
| Cloruro de calcio | Cloreto de cálcio |
| Cloruro de hidrógeno | Cloreto de hidrogênio |
| Cloruro de litio | Cloreto de lítio |
| Cloruro de potasio | Cloreto de potássio |
| cloruro de sodio | cloreto de sódio |
| Cloruro de vinilo | Cloreto de vinila |
| Cloruro ferroso | Percloreto de ferro |
| Cloruro férrico | Percloreto de ferro |
| Cloruro sódico | Cloreto de sódio |
| cloruros | cloreto |
| Close Air Support | Apoio aéreo aproximado |
| Close Encounters of the Third Kind | Close Encounters of the Third Kind |
| Close to Home | Close to Home |
| Closed Caption | Closed Caption |
| Closer | Closer |
| Clostridium | Clostridium |
| Clotario I | Clotário I |
| Clotario II | Clotário II |
| Clotario III | Clotário III |
| Clotario IV | Clotário IV |
| Clotilde | Clotilde |
| Cloto | Cloto |
| Clotoide | Espiral de Cornu |
| Cloud Strife | Cloud Strife |
| Cloudcroft | Cloudcroft |
| Clover | Clover |
| clown | brincalhão |
| club | liga |
| Club Almagro | Club Almagro |
| Club América | Club de Fútbol América |
| Club Atlético Banfield | Club Atlético Banfield |
| Club Atlético Belgrano | Club Atlético Belgrano |
| Club Atlético Bella Vista | Club Atlético Bella Vista |
| Club Atlético Boca Juniors | Club Atlético Boca Juniors |
| Club Atlético Bucaramanga Corporación Deportiva | Club Atlético Bucaramanga Corporación Deportiva |
| Club Atlético Cerro | Club Atlético Cerro |
| Club Atlético Chacarita Juniors | Club Atlético Chacarita Juniors |
| Club Atlético Colón | Club Atlético Colón |
| Club Atlético de Madrid | Atlético de Madrid |
| Club Atlético Gimnasia y Esgrima | Gimnasia y Esgrima de Jujuy |
| Club Atlético Huracán | Club Atlético Huracán |
| Club Atlético Huracán de Tres Arroyos | Club Atlético Huracán do Tres Arroyos |
| Club Atlético Independiente | Club Atlético Independiente |
| Club Atlético Lanús | Club Atlético Lanús |
| Club Atlético Nueva Chicago | Club Atlético Nueva Chicago |
